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The pre-order traversal of a binary search tree is given by $3,5,7,9,4,17,16,20,18,15,14$

Which of these can be inorder traversal

a. $3,4,5,7,9,14,20,18,17,16,15$

b. $20,18,17,16,15,14,3,4,5,7,9$

c. $20,18,17,16,15,14,9,7,5,4,3$

d. $3,4,5,7,9,14,15,16,17,18,20$
in Others by Veteran (431k points)
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2 Answers

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Best answer
inorder traversal always gives sorted list in BST. therefore option D.

by Active (3.8k points)
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Option D

since given tree is BST

Inorder Traversal of BST is always key values of given nodes arranged in sorted ascending order.
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