A NAND gate is equivalent to an AND gate followed by an inverter. All inputs must be _____ to get a low output A. low B. high C. some low and some high D. 0’s E. None of the above

The correct answer is: A. low

A NAND gate is a logic gate that implements the logical NAND function. It is a combination of an AND gate followed by an inverter. The output of a NAND gate is low (0) if all of its inputs are high (1). If any of the inputs are low (0), the output is high (1).

The other options are incorrect because:

• Option B: A NAND gate will output a high (1) if all of its inputs are high (1).
• Option C: A NAND gate will output a high (1) if any of its inputs are low (0).
• Option D: A NAND gate will output a low (0) if any of its inputs are 0’s.
• Option E: None of the above is correct.

I hope this helps!