单选题：Rehashing is required when an insertion to a hash table fails.

Rehashing is required when an insertion to a hash table fails. Which of the following is **NOT** necessary to rehashing? @[A](1)

A. change the collision resolution strategy
B. use a new function to hash all the elements into the new table
C. build another table that is bigger than the original one
D. scan down the entire original hash table for non-deleted elements




A.change the collision resolution strategy
B.use a new function to hash all the elements into the new table
C.build another table that is bigger than the original one
D.scan down the entire original hash table for non-deleted elements


答案：A