Realize the function $f(A,B,C,D)=A^{\text{'}}{C}^{\text{'}}+A^{\text{'}}{B}^{\text{'}}{D}^{\text{'}}+$ACD$+A^{\text{'}}BD.($Enter your answers as comma$-$separated lists.$)$

$(E_{in},I_0,I_1,I_2,I_3,I_4,I_5,I_6,I_7)=()$

$($b$)$ Repeat part $($a$)$ assuming the multiplexer enable is active high and output is active low. $($Use the following as necessary: $0,1,$ and $B.)$

$(1)$

$(E_{in},I_0,I_1,I_2,I_3,I_4,I_5,I_6,I_7)=$

Please just dont give an answer only, explain as well.