Which of the Following Is TRUE

Multiple Choice

Which of the following is TRUE?

A) Branching questions are easy to develop for a mail questionnaire.
B) Sequence bias is potentially more of a problem in telephone interviews than in mail questionnaires.
C) With the exception of mail surveys, it is generally appropriate to number the questions on a questionnaire.
D) The physical appearance of a questionnaire is especially influential in securing cooperation to studies done by mail.
E) All of the above are false.