Given the function f$($a$,$b$,$c$,$d$)=$M$(0,2,4,5,7,9,11,15)$: Use Circuit Maker or draw on paper, a diagram to a$)$ construct the function f using $2$ of $74251(8$x$1$ mux$)$ multiplexers, $1$ OR gate and $1$ NOT gate. b$)$ construct the function above using only one $74251$ and $1$ NOT gate. The $74251$ is an $8$x$1$ mux as shown in the diagram below.