单项选择题

已有函数:void fun1(int x,double y){......},与该函数具有重载关系的是()。

A.void fun1(double x,double y,int z){......}
B.void fun2(double x,double y){......}
C.int fun1(int x,double y){......}
D.double fun2(int x,int y){......}