A、  B、  C、  B本句是表示帮忙处理包裹的提供疑问句。应该理解Could I give you a hand表示主动提供帮助。

Are you planning to go on a business trip soon?
(A)No, he’s at a seminar.
(B)I’m leaving next month.
(C)Do you travel much?

Could I give you a hand with those packages?
(A)They clapped quite loudly.
(B)No, Joe offered to deal with them.
(C)I suppose I can send you some.