单项选择题

在下列横线处应添加的语句是( )。
class Base public:void fun() cout<<"Base::fun"<<end1; ;
class Derived:public Base

public:
void fun()

//显示调用基类的fun函数
cout<<"Derived::fun"<<end1;

;

A) Derived::fun
B) Base::fun();
C) Pubic::fun

D) fun();