Макса задание студенты

using System;

namespace ConsoleApp1
{
    class Student
    {
        public string Name;
        public double[] Marks = new double[5];
        public double avgMark;

        public Student(string name, double[] marks)
        {
            Name = name;
            Marks = marks;

            double temp = 0;
            for (int i = 0; i < Marks.Length; i++)
            {
                temp += Marks[i];
            }

            avgMark = (temp / Marks.Length);
        }

        public static void Sort(ref Student[] array)
        {
            for (int i = 0; i < array.Length; i++)
            {
                for (int ii = 0; ii < array.Length-1; ii++)
                {
                    if (array[ii + 1].avgMark > array[ii].avgMark)
                    {
                        Student temp = array[ii + 1];
                        array[ii + 1] = array[ii];
                        array[ii] = temp;
                    }
                }
            }
        }

    }

    class Program
    {
        static void DeleteBad(Student student) // удаление тех кто не сдал 3 и более экзаменов
        {
            Console.WriteLine("Студент {0} не сдал 3 и более экзаменов", student.Name);
        }

        static void WriteTwoArrays(Student[] array) // успевающие и не сдавшие 1 экз
        {
            foreach (Student student in array)
            {
                int temp = 0;
                foreach (var mark in student.Marks)
                {
                    if (mark <= 2)
                        temp++;
                }
                if (temp >= 3)
                    DeleteBad(student);
                else
                {
                    Console.Write("{0} - ", student.Name);
                    foreach (var mark in student.Marks)
                    {
                        if (mark <= 2)
                            Console.ForegroundColor = ConsoleColor.Red;
                        Console.Write("{0} ",mark);
                        Console.ResetColor();
                    }
                    Console.WriteLine("\t {0}", student.avgMark);

                }
            }

        }
        static void Main(string[] args)
        {
            const int n = 4;
            Student[] StudentArray = new Student[n];
            StudentArray[0] = new Student("Vanya", new double[5] {4,3,4,2,4});
            StudentArray[1] = new Student("Petya", new double[5] {2,3,3,2,2});
            StudentArray[2] = new Student("Vova", new double[5] {5,5,4,4,5});
            StudentArray[3] = new Student("Vasya", new double[5] {4,3,4,4,4});

            foreach (var student in StudentArray)
            {
                Console.Write("{0} - ", student.Name);
                foreach (var mark in student.Marks)
                {
                    Console.Write("{0} ", mark);
                }
                Console.WriteLine("\t {0}", student.avgMark);
            }
            Student.Sort(ref StudentArray);

            Console.WriteLine();
            WriteTwoArrays(StudentArray);
            Console.Read();
        }
    }
}