Which of the following is an effect of overmodulation?

Modulation is the process of adding audio or data to a radio frequency carrier. Overmodulation occurs when the input signal (like microphone audio) is driven too high, exceeding 100% of the transmitter's modulation capability. When a signal is overmodulated, the transmitter cannot cleanly process the extreme audio peaks, resulting in a distorted, clipped waveform. This abrupt clipping generates unwanted, high-frequency harmonics known as 'splatter.' Because splatter pushes radio energy into adjacent frequencies, the overall bandwidth of the transmitted signal becomes excessively wide. This causes interference to other operators on nearby frequencies, meaning excessive bandwidth is the primary symptom of overmodulation.