Assertion : De-morgan's theorem
may be explained by the following circuit

Reason : In the following circuit, for output inputs ABC are 101

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(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
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(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
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(c) If assertion is true but reason is false. |
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(d) If the assertion and reason both are false. |