2. Make an 8-to-1 multiplexer with a 3-to-8 decoder and two groups of 8 AND gates each, plus an OR gate. The 3-to-8 decoder must be done with hierarchical design and several AND gates. You are strongly advised to use Logic Works 5 or similar circuit design software to create circuit diagrams for this question. For hierarchical design, you can draw over the exported circuit diagram to outline smaller hierarchical parts