单选题：According to the following function fun definition,

According to the following function fun definition,
`void fun(int n, double x) { …… }`
which one is the correct calling of the function fun ? @[C](2)
A. fun(int y,double m);
B. k=fun(10,12.5);
C. fun(x, n);
D. void fun(n,x);




A.fun(int y,double m);
B.k=fun(10,12.5);
C.fun(x, n);
D.void fun(n,x);


答案：C