Linda：Shall we give him a pleasant surprise？Jiang：Great!What shall we do？Linda：Let‘s have

Linda：Shall we give him a pleasant surprise？Jiang：Great!What shall we do？Linda：Let‘s have a party at our department． Jiang：__________!Linda：Let’S make some preparations now.

A.All right

B.Good idea

C.Very good

D.I like

请帮忙给出正确答案和分析，谢谢！