运行下面程序时，若从键盘输入数据为"6,5,7"，则输出结果是______.#include void main( ){ int a,b,c;scanf("%d,%d,%d",&a,&b,&c);if (a>b)if (a>c)printf("%d\n",a);elseprintf("%d\n",c);elseif (b>c)printf("%d\n",b);elseprintf("%d\n",c);}

A. 5
B. 6
C. 7
D. 不确定