After a Sales Letter Gains a Prospect's Attention,the Next Thing

After a sales letter gains a prospect's attention,the next thing it must do is:

A) explain why the reader should or should not take the desired action.
B) create curiosity about the product being sold.
C) ask the reader to take a specific action.
D) point out a deadline for action.
E) tell the reader when to expect a follow-up visit or a phone call from the sales representative.