Assertion : NAND or NOR gates are called digital building blocks. Reason : The repeated use of NAND (or NOR) gates can produce all the basic or complicated gates.

If both assertion and reason are true but reason is not the correct explanation of the assertion.

If both assertion and reason are true and the reason is the correct explanation of the assertion.

If assertion is true but reason is false.

If the assertion and reason both are false.

If assertion is false but reason is true.

Assertion : NAND or NOR gates are called digital building blocks

1.	Assertion : NAND or NOR gates are called digital building blocks. Reason : The repeated use of NAND (or NOR) gates can produce all the basic or complicated gates.
A.	If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.	If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.	If assertion is true but reason is false.
D.	If the assertion and reason both are false.
E.	If assertion is false but reason is true.
Answer» B. If both assertion and reason are true but reason is not the correct explanation of the assertion.