假如你是当年跟随郑和下西洋的一名商人，那么你会携带那些你认为销路最好的商品 [ ]

A．书籍和药材

B．丝绸和瓷器

C．金银饰品

D．香料和宝石

— You look puzzled at the news.

— Yes. I just can’t imagine _____ he could have done such a thing.

A．what

B．how

C．whether

D．Where