--- I’m sure Andrew will win the first prize in the final.

--- I think so. He ___________ for it for months.

A．is preparing

B．was preparing

C．had been preparing

D．has been preparing

贴水出售的债券的到期收益率与该债券的票面利率之间的关系是( )。

A．到期收益率等于票面利率

B．到期收益率大于票面利率

C．到期收益率小于票面利率

D．无法比较