The addition of two binary variables A and B results into

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The addition of two binary variables A and B results into a SUM and a CARRY output. Consider the following expressions for the SUM and CARRY outputs—

1. SUM = AB + A B
2. SUM = AB + BA
3. CARRY = AB
4. CARRY = A + B

Correct Option: B

SUM = A ⊕ B = A B + BA
CARRY = AB