The preorder traversal sequence of a binary search tree is 30, 20, 10, 15, 25,

Question

The preorder traversal sequence of a binary search tree is 30, 20, 10, 15, 25, 23, 39, 35, 42. Which one of the following is the postorder traversal sequence of the same tree?

Options:

A . 10, 20, 15, 23, 25, 35, 42, 39, 30

B . 15, 10, 25, 23, 20, 42, 35, 39, 30

C . 15, 20, 10, 23, 25, 42, 35, 39, 30

D . 15, 10, 23, 25, 20, 35, 42, 39, 30

Answer: Option D

-NA-

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