Question: Question 2 This question considers binary trees using the following node class. You may not assume that the tree has any method or additional fields.

Question 2 This question considers binary trees using the following node

Question 2 This question considers binary trees using the following node class. You may not assume that the tree has any method or additional fields. class Node \{ String key; Node left, right; \} Node root; // the root of the tree (a) Implement a method removeLeaves which removes all of the leaves in the tree, reducing the height by 1 . public void removeLeaves () \{ (b) If you assume that the tree is balanced, what is the order of growth for removeLeaves ()? Circle the best answer, where N is the number of keys in the tree. 1logNNNlogNN2logN23

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