One Reason That Your Text Suggests Questionnaires Be Used When

One reason that your text suggests questionnaires be used when assessing sexual behaviour is that

A) people may provide more sexual information in writing than during an interview.
B) written information regarding sexuality has been shown to be more accurate than a verbal report.
C) therapists are often uncomfortable asking questions regarding sexual behaviour.
D) the therapist needs a written record in the patient's own words to demonstrate progress as the patient improves.