Setting the id of an object to property in a nested Object on creation

class Question{
  int Id;
  int Order;
  List<QuestionText> QuestionTexts;
}

class QuestionText{
  string Text;
  int QuestionId;
  string LocaleCode;
}

var newQuestions = questions.Select(q => new Question()
            {
                Order = q.Order,
                QuestionTexts = q.QuestionTexts.Select(qt => new QuestionText()
                {
                    Text = qt.Text,
                    LocaleCode = qt.LocaleCode,
                    QuestionId = "this needs to be the id of the new instance"
                })
            });