MSQ Response Bug

//In the Form class
private void ClickDelegate(Object o, System.EventArgs e, QuestionContainerState obj)
{
    CustomControl1 c = (CustomControl1)o; //CustomControl1 is the class name of the custom label I'm using to display on the question palette.
    ... //Irrelevant code
    int adder = DisplayAQuestion(c.GetQNo);
    counter = adder + 1; //counter stores the current value of the question being displayed.
    ... //Irrelevant code
}

private void DisplayAQuestion(int i)
{
    ButtonBase temp;
    int optionId = 1;
    foreach (string s in questions[i].Options)
    {
          ... //Irrelevant code, MCQ portion.
          else if (QuesTypes[i].Equals("MSQ") || QuesTypes[i].Equals("Linked")) //Temporary measure for linked questions
          {
                if (questionDisplay1.MSQResp.ContainsKey(i))
                {
                    //temp = questionDisplay1.GetResponse;
                    var temporary = questionDisplay1.MSQResp.FirstOrDefault(x => x.Key.Equals(i)).Value.Find(y => ((CustomChecks)y).optionId == optionId);
                    if (temporary != null && temporary.Text.Equals(s))
                    {
                        questionDisplay1.AddOption_msq(s, true, i, optionId);
                    }
                    else
                        questionDisplay1.AddOption_msq(s, false, i, optionId);
                }
                else
                {
                        questionDisplay1.AddOption_msq(s, false, i, optionId);
                }
         }
         optionId++;
   }
}

private void button5_Click(object sender, EventArgs e) //Save And Next button
{
    if (QuestionContainer.Controls.Count != 0)
    {
                       if (QuesTypes[counter - 1].Equals("MCQ")) //Sample portion
                       {
                              if (!questionDisplay1.MCQResp.ContainsKey(counter - 1))
                                        questionDisplay1.MCQResp.Add(counter - 1, questionDisplay1.MCQDisplay[counter - 1]);
                              else
                                        questionDisplay1.MCQResp[counter - 1] = questionDisplay1.MCQDisplay[counter - 1];

                       }
                       else if (QuesTypes[counter - 1].Equals("MSQ") || QuesTypes[counter - 1].Equals("Linked"))
                       {
                              if (!questionDisplay1.MSQResp.ContainsKey(counter - 1))
                                        questionDisplay1.MSQResp.Add(counter - 1, questionDisplay1.MSQDisplay[counter - 1]);
                              else
                                        questionDisplay1.MSQResp[counter - 1] = questionDisplay1.MSQDisplay[counter - 1];
                       }

                       ... //Irrelevant code

    }
}

//In the QuestionDisplay class.
public void AddOption_msq(string optionText, bool arg, int QNo, int option)
{
            CustomChecks cb = new CustomChecks();
            cb.Text = optionText;
            cb.Location = new Point(3, 40 + grbOptions.Controls.Count * 30);
            cb.AutoSize = true;
            cb.Checked = arg;
            cb.QuestionNumber = QNo;
            cb.optionId = option;
            if (!DispMSQ.ContainsKey(QNo)) //First time the question is viewed.
            {
                // First time, add an empty list
                DispMSQ.Add(QNo, new List<ButtonBase>());
            }
            if(DispMSQ.ContainsKey(QNo) && DispMSQ[QNo].Any()) //If option is deselected.
            {
                if (arg == false)
                    foreach (CustomChecks C in DispMSQ[QNo])
                    {
                        if(C.Text.Equals(optionText))
                        {
                            DispMSQ[QNo].Remove(C);
                            break;
                        }
                    }
            }
            cb.CheckedChanged += delegate(Object sender, System.EventArgs e)
            {
                temp = sender as CustomChecks;
                if (((CustomChecks)temp).Checked == true)
                {
                    if (!DispMSQ[QNo].Any(x => x.Text.Equals(optionText))) //Check if the checkbox already exists in the List
                    {
                        DispMSQ[QNo].Add(temp);
                    }
                }
                if (((CustomChecks)temp).Checked == false)
                {
                    foreach (CustomChecks C in DispMSQ[QNo])
                        if (C.Text.Equals(temp.Text))
                        {
                            DispMSQ[QNo].Remove(C);
                            break;
                        }
                }
            };
            grbOptions.Controls.Add(cb);
            if (RespMSQ.ContainsKey(QNo) && RespMSQ[QNo].Any()) //For persistently displaying the proper checked state.
            {
                foreach (CustomChecks C in RespMSQ[QNo])
                {
                    foreach (CustomChecks D in grbOptions.Controls)
                    {
                        if (D.Text.Equals(C.Text))
                        {
                            D.Checked = C.Checked;
                        }
                    }
                }
            }
}