What is the inorder predecessor of 15 in the binary search tree shown below?

ISRO Scientist/Engineer SC · 2023 · Computer Science · Part A · Discipline

What is the inorder predecessor of 15 in the binary search tree shown below?

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  1. A.

    18

  2. B.

    7

  3. C.

    9

  4. D.

    13

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