请选择程序的运行结果。#include <;stdio.h>;int Fun(int m) {static int n = 0;m /= 2;m = m * 2;if (m) {n *= m;return (Fun(m - 2));}elsereturn n;}int main() {printf("%d\n", Fun(5));return 0;}
选项：

A:8
B: 0
C: 64
D: 4