The combinational circuit represents

$($a$)$ Decoder

$($b$)$ Encoder

$($c$)$ Comparator

$($d$)$ Multiplexer

The function represented by the following $4x1$ Multiplexer is

$($a$)F=x^{\text{'}}yz+x^{\text{'}}{y}^{\text{'}}{z}^{\text{'}}+xy$

$($b$)F=xy+xz+x^{\text{'}}{y}^{\text{'}}z$

$($c$)F=x^{\text{'}}{y}^{\text{'}}z+x^{\text{'}}y{z}^{\text{'}}+xy$

$($d$)F=x^{\text{'}}{y}^{\text{'}}z+x{y}^{\text{'}}{z}^{\text{'}}+x^{\text{'}}y$

Using the following Decoder, the simplified SOP for the function $F$ is:

$($a$)F=B^{\text{'}}{C}^{\text{'}}+BC+A{B}^{\text{'}}$

$($b$)F=B^{\text{'}}C+BC+A{B}^{\text{'}}$

$($c$)F=B{C}^{\text{'}}+BC+A{B}^{\text{'}}$

$($a$)F=B^{\text{'}}{C}^{\text{'}}+BC+A^{\text{'}}B$

To implement $Ao+B$ using xOR with three inputs, the third input should be

a$)$ Ground

b$)$ To one of inputs $(A,B)$

c$)+5V$

d$)$ Answers b or $c$

Which one of these called universal gate:

a$)$ NAND only

b$)$ NAND, NOR

c$)$ AND, OR$,$ NOT

d$)$ OR$,$ AND, NOT, NOR,XOR, XNOR, NAND

What is the output of xOR with two inputs $A,B,$ if $A$ is connected to $+5v$ :

a$)$ Always zero

b$)$ Always one

c$)B$

d$)$ B$\text{'}$