【单选题】#include struct stu{ int a;int b;struct poi{ int x;int y;}ins;};void main(){   struct stu outs;    outs.a=11;     outs.b=4;     outs.ins.x=outs.a+outs.b;    outs.ins.y=outs.a-outs.b;    printf(“%d,%d”, outs.ins.x, outs.ins.y);}

题目：【单选题】#include struct stu{ int a;int b;struct poi{ int x;int y;}ins;};void main(){   struct stu outs;    outs.a=11;     outs.b=4;     outs.ins.x=outs.a+outs.b;    outs.ins.y=outs.a-outs.b;    printf(“%d,%d”, outs.ins.x, outs.ins.y);}

A、11,4
B、4,11
C、15,7
D、7,15