The correct answer is A. NAND.
A NAND gate is a logic gate that produces a high output only if all of its inputs are low. It can be constructed by inverting the output of an AND gate.
An AND gate is a logic gate that produces a high output only if all of its inputs are high.
An OR gate is a logic gate that produces a high output if any of its inputs are high.
An XOR gate is a logic gate that produces a high output if its inputs are different.
Therefore, the logic function produced by adding an inverter to each input and the output of an AND gate is a NAND gate.