李小姐购买的可转换债券中，不包含的要素是( )。

A．债券的票面价值

B．债券的偿还期限

C．债券的到期收益率

D．转换期限

With the boy______ the way, we had no diffaculty ______the village.

A．to lead; to find

B．leading; to find

C．leading; finding

D．to lead; finding