Explanation: The capture effect is a characteristic of FM receivers. When two or more signals are present on the same frequency, the FM receiver "captures" the strongest signal. This phenomenon causes the receiver to effectively suppress and ignore any weaker signals on that frequency, allowing only the dominant, strongest signal to be heard clearly. * **A) The receiver will accept all signals near the operating frequency.** This describes poor selectivity, not the capture effect, which deals with multiple signals *on* the exact same frequency. * **B) The receiver will reject all but the weakest signal.** This is the opposite of the capture effect. The stronger signal dominates and suppresses the weaker ones. * **D) The receiver will modulate an adjacent transmitter.** This describes a problem like intermodulation distortion or an issue with a transmitter, not a receiver's behavior with competing signals.