3. Redraw the n-tree below a child/sibling link implementation. (H) B E A K M R (N) 4. Show the result of inserting 2, 1, 4, 5, 9, 3, 6, and 7 into an initially empty AVL tree. Show each tree after each insertion and rotation. Label all OOB nodes, and indicate when you are doing a single or double rotation.