则该队列为满队列的条件为（）（采用少用一个空间的方法）

A.Q->rear==Q->front
B.Q->rear+1==Q->front
C.（Q->rear+1）%MAXSIZE==Q->front
D.（Q->rear-1）%MAXSIZE==Q->front

A.Q->rear-Q->front
B.Q->rear-Q->front+1
C.（Q->rear-Q->front+MAXSIZE）%MAXSIZE
D.（Q->rear-Q->front+1+MAXSIZE）%MAXSIZE

A.*x=Q->next->data
B.*x=Q->front->data
C.*x=Q->front->next->data
D.*x=Q->rear->data