4. The following code (studied in class) is part of the code for deleting a node from a binary search tree for the case where neither of the two sub-trees of the deleted node is empty. This code replaces the deleted item by the largest item in the left sub-tree. // Neither subtree is empty. Find largest element of left subtree Node largestParent = toBeRemoved; Node largest = toBeRemoved.getLeft(); while (largest.getRight() != null) { largest Parent = largest; largest = largest.getRight(); } toBeRemoved.setData (largest.getData()); if (largest Parent == toBeRemoved) { largest Parent.setLeft (largest.getLeft()); } else { largest Parent.setRight (largest.getLeft()); } Modify this code so that it replaces the deleted item with the smallest item in the right sub-tree instead of replacing it with the largest item in the left sub-tree. Similar to the above code, your modified code should be iterative (using a loop) and not recursive