All of the Following Are Disadvantages of Telephone Interviews EXCEPT

Multiple Choice

All of the following are disadvantages of telephone interviews EXCEPT:

A) Many people screen or block calls from people whom they do not know.
B) The researcher is more likely to obtain a biased sample using a telephone survey than a mail survey.
C) The researcher cannot examine nonverbal behavior of the respondent.
D) It is more difficult to establish rapport over the telephone than in personal interviews.