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For the following logic circuit, the truth table is:
Explanation
Circuit gives $y=\overline{\overline{A}\cdot\overline{B}}=A+B$ (OR), matching option (c).
Detailed Solution
$y=\overline{\overline{A}\cdot\overline{B}}$
$=A+B$
Truth table:
A B Y
0 0 0
0 1 1
1 0 1
1 1 1