c) Draw an equivalent BST, AVL and Splay tree for the 2-3-4 tree below. d) Using the 2-3-4 tree below, insert the value 9 into the tree and redraw the resulting 2-3-4 tree. (no intermediate steps are required) 20 60 8 12 17 74 91 43 5 1113 1619 28 31 56 71 75 80 89 94