# Data Structures | Binary Trees | Question 15

Consider a node X in a Binary Tree. Given that X has two children, let Y be Inorder successor of X. Which of the following is true about Y?**(A)** Y has no right child**(B)** Y has no left child**(C)** Y has both children**(D)** None of the above**Answer:** **(B)****Explanation:** Since X has both children, Y must be leftmost node in right child of X.

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