$|c_0{C}_1{C}_2(30$ points$)$ The inputs of three registers RO$,$ R$1,$ and R$2$ are each controlled by a $2-$to$-1$ multiplexer. The

multiplexer select line and the register load enable inputs are controlled by inputs $C_0,C_1,$ and $C_2.$ Only one of the

control inputs may be equal to $1$ at a time. The required transfers are:

$C_0$:$R2$larrR$0,R1$larrR$0$ Please show all your work and draw all the diagrams

$C_1$:$R2$larrR$1,R0$larrR$1$

$C_2$:$R2$larrR$1$