单选题：After deleting number 14 from a binomial queue of 5 numbers { 12

After deleting number 14 from a binomial queue of 5 numbers { 12, 13, 14, 23, 24 }, which of the followings is impossible? @[A](2)

A. the LeftChild link of the node 12 is NULL;
B. the NextSibling link of the node 12 is NULL;
C. the NextSibling link of node 13 may point to node 23;
D. the LeftChild link of node 24 is NULL;




A.the LeftChild link of the node 12 is NULL;
B.the NextSibling link of the node 12 is NULL;
C.the NextSibling link of node 13 may point to node 23;
D.the LeftChild link of node 24 is NULL;


答案：A