一般地，投保人确定保险需求的首要原则是（）。

A.高额损失原则

B.高额收入原则

C，需求原则

D.补偿原则

---Mum, I am afraid I won’t do well in the coming test.

--- Honey, ____ more careful, ____ you will make it.

A．is; so

B．be; and

C．be; then

D．being; and