The addition of two binary variables A and B results in a SUM and a CARRY output.Consider the following expressions for SUM and CARRY outputs.(a) SUM \( = A \cdot B + \;\overline {AB} \)(b) SUM = A⋅B̅ + A̅ ⋅ B(c) CARRY = A⋅B(d) CARRY = A + BWhich of the following expressions are correct?

The addition of two binary variables A and B results in a SUM and a CA

1.	The addition of two binary variables A and B results in a SUM and a CARRY output.Consider the following expressions for SUM and CARRY outputs.(a) SUM \( = A \cdot B + \;\overline {AB} \)(b) SUM = A⋅B̅ + A̅ ⋅ B(c) CARRY = A⋅B(d) CARRY = A + BWhich of the following expressions are correct?
A.	(a) and (c)
B.	(b) and (c)
C.	(d) and (b)
D.	(a) and (d)
Answer» C. (d) and (b)