/*
  Summary of the Multiple Choices selected, with a blank space between each
*/
=ARRAYFORMULA(                                                    // Iterate over the rows (defined in parameters)
  if(row(Data!A1:A)=1,                                            // If the first row...
    "Concat",                                                     //    ... just print the column name
    REGEXREPLACE(                                                 // Every other line...
      Data!F1:F&" | "&Data!G1:G&" | "&Data!H1:H&" | "&Data!I1:I,  //    ... concat each row with a space-bar " | "
      "^[| ]+|[| ]+$", ""                                         //    ... and remove the unnecessary start and end space-bars
    )                                                             //    ... with a cool regular expression
  )
)