单项选择题

有以下程序
int f(int b[] [4])
int i,j,s=0;
for(j=0; j<4; j++)
i=j;
if (i>2) i=3-j;
s+=b[i] [j];

return s;

main ( )
int a[4] [4] =1,2,3,4, 0,2,4,6, 3,6,9,12), 3,2,1,0;
print f ( "%d\n" , f(

A.);
&nbs