—I don't know ____ makes her different from others．

—Confidence, I think.[ ]

A．how is it that    

B．how it is that    

C．what is it that    

D．what it is that

占有人返还原物的请求权，自侵占发生之日起（）内未行使的，该请求权消灭。

A、半年

B、一年

C、两年

D、三年