5. ( 5%) Given an AVL tree in the following, we perform the operations I, II, III and IV, independently. Which of these operations would result in the tree to be unbalanced and then restructured? I. insert 1 II. insert 25 III. delete 44 IV. delete 22 (A)I, II and III. (B) I and IV. (C) III and IV. (D) I and II. (E) I, III and IV