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5. Verify that your mux-demux scheme works as expected by trying out different combinations ofa,b, ands.Now connect theselectinputs of the multiplexer and demultiplexer to a clock output by removing thesinput of thedemultiplexer from the switch it is connected to and connecting it to the Magic Box’sclock output. Remember thatonly the last three contact points connect to the clock signal as the first one connects to the probe.TODO: Set bothaandbto see what happens when your clock output is set to 1 Hz. Then do thisagain with a clock output of 2 Hz, and again at 1 kHz. What do you notice?(Note: see theMagic BoxUser Manualpage 6 for changing the clock frequency.)3MultiplexingTODO: Using Logisim, implement a circuit with three inputs:a,b, ands. This circuit should work asfollows: whensis off, the output isaANDb. Whensis on, the output isaXORb. As such, thesinput will beselecting which function to apply toaandb– do we AND or XOR? (Note: Multiplexers can be found in thePlexersfolder in Logism, so please use it instead of constructing it from scratch).3