Thinking about the fact that I was not prepared well enough,and _______ to lose my face,I gave up this year’s civil service exam.

A．didnt want

B．not wanted

C．not wanting

D．not to want

一般而言，下列筹资方式中，资金成本最高的是（）。

A、发行普通股票

B、发行优先股票

C、长期借款

D、发行债券