另类循环队列，如果用一个循环数组表示队列，并且只设队列头指针Front，不设尾指针Rear，而是另设Count记录队列中元素个数。请编写算法实现队列的入队和出队操作。

A.front == rear % n

B.front == (rear + 1 ) % n

C.front == rear % n - 1

D.front == rear % (n – 1 )

A.front == rear % n

B.front == (rear + 1 ) % n

C.front == rear % n - 1

D.front == rear % (n – 1 )

A.front == rear

B.front != rear

C.front == (rear+1) % m0

D.front != (rear+1) % m0

A.rear=rear+1

B.rear=(rear-1)%m

C.rear=(rear+1)%(m-1)

D.rear=(rear+1)%m