Which of the Following Is an Advantage of Telephone Interviews

Multiple Choice

Which of the following is an advantage of telephone interviews?

A) It is easy to create a random sample.
B) The response rate for telephone interviews is higher than the response rate for personal interviews.
C) There is virtually no possibility of a biased sample because the vast majority of people in the U.S. have telephones of some kind.
D) All of the above are advantages of telephone interviews.