Which of the following operations belongs to message passing

A．read and write

B．save and receive

C．wait and signal

D．P and V

KPMG风险中性定价模型中所要用到的变量包括（）。

A.零息贷款承诺的利息

B.与贷款相同期限的零息国债的收益率

C.零息债券的非违约率

D.借款企业规模

E.借款企业的市场价值