下面程序的运行结果是( )。#include ＜iostream.h＞void main(){static int a[][4]={ 1,2,3,4,5,6,7,8,9,10,11,12};int i, j, sum=0;for(i=0;i＜3;i++)for(j=0;j＜4;j++)if(j＞i)sum+=a[i][j];cout＜＜sum＜＜end1;}

A．24

B．30

C．36

D．40