Which of the Following Statements About Direct Marketing Is True

Which of the following statements about direct marketing is true?

A) It is more public in nature than mass media.
B) It lacks the precision and flexibility that cost-sensitive marketers require.
C) It offers accountability by providing a tangible response.
D) It is based on the idea that people like to see themselves as a part of the mass market.
E) Its campaigns are effective for all customers except time-sensitive consumers.