↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑设数组data[0…m)作为循环队列sq的存储空间，front为队头指针，rea……

设数组data[0…m)作为循环队列sq的存储空间，front为队头指针，rear为队尾指针，则执行出队操作的语句为

A．sq↑.front:=sq↑.front+1;
B．sq↑.front:=(sq↑.front+1)%maxsize;
C．sq↑.rear:=(sq↑.rear+1)%maxsize;
D．sq↑.front:=(sq↑.front+1)%(maxsize+1);