form.js

var form = FormApp.create('Örnek Test');

form.setIsQuiz(true);

var item = form.addMultipleChoiceItem();

item.setTitle("Türkiyenin başkenti neresidir?")
  .setChoices([
    item.createChoice("İstanbul", false),
    item.createChoice("Ankara", true),
    item.createChoice("Antalya", false),
    item.createChoice("Bursa", false)
  ])
  .showOtherOption(false);

var correctFeedback = FormApp.createFeedback()
  .setText("Doğru")
  .build();

item.setFeedbackForCorrect(correctFeedback);

var incorrectFeedback = FormApp.createFeedback()
  .setText("Yanlış")
  .build();

item.setFeedbackForIncorrect(incorrectFeedback);