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