Which of the following statements is CORRECT about recorded delivery and registered post？A

Which of the following statements is CORRECT about recorded delivery and registered post？

A．Neither of them accepts any airway letters.

B．They both deliver mails to the addressee in person.

C．Both require that the Advice of Delivery Form. be signed by the post office official.

D．Recorded delivery doesn"t compensate for bank notes, but registered post does.

请帮忙给出正确答案和分析，谢谢！