在循环双链表的p结点之后插入s结点的操作是______。
A.
p->next=s; p->next->prior=s; s->prior=p; s->next=p->next;
B.
s->next=p; s->next=p->next; p->next=s; p->next->prior=s;
C.
p->next=s; 3->prior=p; p->next->prior=s; s->next=p->next;
D.
s->prior=p; s->next=p->next; p->next->prior=s; p->next=s;