【单选题】Choose the best advice to craft an effective direct-mail sales letter. ( )
A.
Shift from legal to slightly illegal sales tactics in follow-up sales letters to get the desired sale.
B.
Develop and present a strong rational selling point early in the body of the letter. Later, add emotional appeals, using each appeal only once.
C.
Present information completely, using a personalized tone for a specific, well-targeted audience.
D.
You should avoid these aggressive sales methods: don't push for action, don't make it too easy to respond, and don't reveal all the benefits immediately.