Suppose q and p are pointers in singly linked list, q is predecessor of p, if we want to insert s node between q and p, we should execute ( )

A. s->next=p->next; p->next=s;
B. p->next=s->next; s->next=p;
C. q->next=s; s->next=p;
D. p->next=s; s->next=q;