College graduates are offered lots of available jobs, ______, I believe, they can fully demonstrate their knowledge and competence.

A．where

B．which

C．that

D．what

假定某公司普通股股票当期市场价格为15元，那么该公司转换比例为30的可转换债券的转换价值为( )元。

A．0.5

B．2

C．30

D．450