Which of the following is a disadvantage of FM compared with single sideband?

Frequency Modulation (FM) exhibits a phenomenon known as the 'capture effect.' When multiple FM signals are present on the same frequency, the receiver will latch onto or 'capture' the strongest signal and completely suppress the weaker ones. This means only one signal can be heard at a time. Single Sideband (SSB) and Amplitude Modulation (AM) do not experience the capture effect. If two stations transmit on the same SSB frequency, the receiver will mix the audio of both, allowing the listener to hear both voices simultaneously. This makes SSB highly advantageous in crowded bands or weak-signal conditions where you might need to pick out a weak station hiding behind a stronger one.