A Marketing Researcher Wants to Do a Survey to Probe

Multiple Choice

A marketing researcher wants to do a survey to probe in-depth consumer attitudes about their experiences with the company's products. He is LEAST likely to get what he wants if he uses:

A) personal interviews.
B) online focus groups.
C) telephone interviews.
D) a mail survey.
E) None of the above is very useful for getting in-depth information about consumer attitudes.