
AND gate
NAND gate
OR gate
XOR gate
The given diagram shows a logic circuit consisting of two logic gates. Let's analyze the configuration:

When combined, these two gates perform the logic function of a NAND gate. A NAND gate produces an output that is false only if all its inputs are true. In other words, it is the negation of an AND operation.
Therefore, the diagram effectively performs the NAND operation, which is the inversion of the AND logic operation specified.
The correct answer is: NAND gate.