_____ , he doesn't study well. [ ]

A. As he is clever

B. He is as clever

C. Clever as he is

D. As clever he is

根据外汇管理法律制度的规定，境内投资者以外汇资金向境外投资的，应向所在地外汇管理局缴存所投资金的一定比例，作为汇回利润保证金。该比例为( )

A．0.025

B．0.05

C．0.1

D．0.15