Which of the Following Statements Is True of Personal Selling

Which of the following statements is true of personal selling?

A) Personal selling involves inexpensive forms of communication.
B) For personal selling to be effective, the sales and promotions department should operate independently.
C) Integrated marketing communications (IMC) tools are used in conjunction with personal selling to make it effective.
D) In an integrated marketing communications (IMC) program, personal selling is a substitute for other promotional-mix elements.
E) Personal selling is typically controlled by the advertising and promotions department.