单选题 有如下程序 struct man { char name[20]; int age; }person[]={"liming",18,"wanghua",19,"zhangping",20,"hanpeng",21}; int main(void) { int old; struct man *p=person,*q; q=p; old=p->age; for(;p<=&person[3];p++) if(old<p->age) { q=p; old=p->age; } printf("name=%s,old=%d\n",q->name,q->age); } 程序的运行结果为( )