Which of the Following Is True of Skip Questions

Which of the following is true of skip questions?

A) In order to speed through the data collection process, an interviewer may ask the respondent a few skip questions.
B) If an interviewer (or respondent on a self-administered survey) fails to follow instructions for skip questions, he or she cannot recontact respondents and verify their responses to skip questions.
C) If an interviewer (or respondent on a self-administered survey) fails to follow instructions for skip questions, the respondent can skip those questions.
D) If a respondent on a survey fails to follow instructions for skip questions, the interviewer may inject a tone of negativity into the interviewing process.
E) Skip questions are not a problem with online surveys since the computer controls the sequence of answering questions.