(A′ + B′ + C′)′ is equal to—

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(A′ + B′ + C′)′ is equal to—

1. A′ B′ C′
2. ABC
3. A + B + C
4. A′ + B′ + C′

Correct Option: B

= (A′ + B′ + C′)′
= A′′. B′′. C′′
= ABC
Hence (B) is the correct alternative.