12540 2x1 multiplexer

For making 2:1 MULTIPLEXER, we need the following components:- 1) 2 - INPUTS(D0,D1). 2) 1 - SELECT LINE(S0). 3) 1 - NOT GATE. 4) 2 - AND GATE. 5) 1 - OR GATE. 6) 1 - OUTPUT(BULB). 7) GROUND.