A、  B、  C、  A句子是询问回复顾客投诉应该是谁的责任的Whose疑问句。

Could you deliver this message to Mr. Julienne?
(A)Yes, I read it.
(B)Sure. Where’s his office?
(C)He’s a great public speaker.

Whose responsibility is it to answer customer complaints?
(A)I guess that’d be me.
(B)Yes, we accept credit cards.
(C)Mr. Renaldo just arrived.