Problem 4: (5 pts) We wish to design a decoder, with three inputs, x, y, z, and eight active high outputs, labeled 0, 1, 2, 3,4, 5, 6, 7 The only building block is a two-input, four output decoder (with an active high enable), shown below EN A BO 1 23 0 XX 0 0 00 2 3 EN Draw a block diagram of the system using as many of these building blocks that are needed