4. Completeness of 2-to-1 MUX (7 points total) a) Draw a 2-to-1 multiplexor. Label all the inputs and outputs clearly with any name you want. Then write the truth table for the 2-to-1 multiplexor. (I point) b) Design an inverter using only 2-to-1 multiplexors. Show all inputs and outputs clearly. (2 points) c) Design a 2-input AND gate using only 2-to-1 multiplexors. Show all inputs and outputs clearly. (2 points) d) Design a 2-input OR gate using only 2-to-1 multiplexors. Show all inputs and outputs clearly. (2 points) Your designs in parts b), c), and d) must make sense; they must have the following properties: the inputs and outputs are labeled clearly the "components inside your design must only be 2-to-1 multiplexors. No other things allowed