Which of the following is true about "zero-padding" in the context of the FFT?

A) It reduces the total number of frequency bins.

B) It improves frequency resolution by adding zeros to the signal.

C) It decreases computation time for the FFT.

D) It enhances the amplitude of the signal.

Answer: B) It improves frequency resolution by adding zeros to the signal.

Explanation: Zero-padding involves adding zeros to the end of a signal before performing the FFT, which increases the number of frequency bins and improves frequency resolution in the resulting spectrum.