How should we rebalance if each of the following sequences is deleted from the above tree, rotating as needed after each element is deleted? 2. a. (10 9 78) b. (13) c. (1 5) For each of the three sequences, start with the original 13-element tree. E.g. when deleting 13, assume 10 9 87 ae still in the tree. Whenever there is a rotation, draw the new tree and notate the type of rotation