The given figure shows a NOT gate followed by an AND gate. The NOT gate inverts its input, so if input is A, output is $\overline{A}$. This is fed into the AND gate along with another input B. The AND gate outputs 1 only if both its inputs are 1. Therefore, the final output X is $B·\overline{A}$ (B AND NOT A).

Final Answer: The third option, which is the logic symbol for an AND gate with one inverted input (B AND NOT A).