单项选择题

案例分析题

你正在编写一个函数,该函数可安全的执行除法运算。你需要确保向函数传递分母和分子,并且分母不为零。

问题(1)空应填什么代码段?()

A.if fenzi is None and fenmu is None:
B.if fenzi =None or fenmu =None:
C.if fenzi is None or fenmu is None:
D.if fenzi =None and fenmu =None: