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. Statetment-I is True, Statement-II is True , Statement-II is a correct explanation for Statement-I
B. Statement-I is True, Statement-II is True , Statement-II is NOT a correct explanation for Statement-I
C. Statement-I is True, Statement-II is False
D. Statement-I is False, Statement-II is True
