Which of the Following Statements Are True Concerning Questionnaire Design

Multiple Choice

Which of the following statements are true concerning questionnaire design for international marketing research?

A) The questionnaire may have to be suitable for administration by more than one method.
B) It is desirable to have two or more simple questions rather than a single complex question.
C) Unstructured or open-ended questions should be used with caution in countries with high illiteracy rates.
D) All of the above statements are true.