—Do you think I should accept his invitation, Jim?  

—        If I were you, I certainly would.

A．None of your business.

B．It depends.

C．Why not?

D．I don't think so.

按照流动原因和具体类型计算的流动率不包括（）。

A.主动辞职率

B.员工辞退率

C.员工留存率

D.被动离职率