Which of the following italicized parts serves as an appositive？A．Have you anything to dec

Which of the following italicized parts serves as an appositive？

A．Have you anything to declare？

B．I have no wish to quarrel with you.

C．This is the best book on the subject to appear this year.

D．Is there anyone to talk to？

请帮忙给出正确答案和分析，谢谢！