(2009福州市高中毕业班第一次单科质量检查)There are altogether fifty-six students in our class,     is a new comer from a faraway mountain village.

A．the most hard-working of who

B．of whom the most hard-working

C．the most hard-working of them

D．but the most hard-working of whom

行政诉讼委托代理人的代理权限应当在（）中明确。

A、行政诉讼起诉状

B、法律

C、授权委托书

D、法院规定