Which of the Following Is True of Direct Mail

Which of the following is true of direct mail?

A) Direct-mail marketing has waned due to excessive use of the Internet.
B) Traditional direct-mail business has experienced higher response rates from many consumers with the advent of the Internet.
C) It is synonymous with personal selling.
D) Keys to the success of direct mail are the mailing list.
E) It depends extensively on the U.S.Postal Service.