有以下程序#include <stdio.h>int fun(int (*s)[4],int n, int k){ int m, i; m=s[0][k]; for(i=l; i<n; i++) if(s[i][k]>m) m=s[i][k]; return m;}main(){ int a[4][4]={{1,2,3,4},{11,12,13,14},{2l,22,23,24},{31,32,33,34}}; printf("%d\n", fun(a,4,0));}程序的运行结果是A.4 B.34C.31 D.32