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1. Use the above binary search tree to answer the following questions: (a) What is the pre-order traversal of this tree? (b) What is the in-order traversal of this tree? (c) What is the post-order traversal of this tree? 2. What is the maximum height of a binary search tree that contains n items? Why? 3. What is the minimum height of a binary search tree that contains n items? Why? 4. Why is it important for a binary search tree to remain balanced? 5. Write an implementation for finding the minimum element in a binary search tree, print all the numbers that divisible by 3 . You may write either a recursive or iterative implementation