The Advantage of the Interview Technique Over the Questionnaire Approach

The advantage of the interview technique over the questionnaire approach is that:

A) interview data can be collected easily and cheaply
B) it does not require the time and effort that must go into preparing questionnaires
C) the researcher has the opportunity to seek clarification when responses are ambiguous
D) the interviewer can reliably detect from the tone of the respondents whether they are lying
E) none of the above