13. Which of the following stater
(A) All binary heaps are leftist heaps.
ements are true?
(B) All leftist heaps are of height O(logn).
(C) The InsertO operation in a leftist heap takes O(logn) time.
(D) The DeleteO operation in a leftist heap takes O(logn) time.
(E) The Merge0 operation between lefist heaps takes O(logn) time.