—Mum，I am afraid I won’t do well in the coming test.

—Honey，________more careful，________you will make it.

A．is；so

B．be；and

C．be；then

D．being；and

( )是客户对证券公司融资融券债务的担保物。

A．证券公司向客户收取的保证金

B．客户融资买入的全部证券

C．融券卖出所得全部资金

D．利息及费用