Explanation: Setting the squelch control to its maximum level (B) significantly limits your receiving range. Squelch mutes the receiver's audio output until an incoming signal exceeds a certain strength. When set to maximum, only very strong, typically nearby, signals will be heard, as weaker, more distant signals won't be strong enough to open the squelch. Conversely, setting squelch to its minimum (A) allows even weak signals and noise to be heard, maximizing the effective range your receiver can pick up. Option C, high power output causing receiver overloading, is a transmitting issue, not a receive issue that limits range in the same way. Receiver overloading usually occurs from a strong external signal, not the radio's own transmit power impacting its receive section unless transmitting simultaneously. Option D, selecting midway between channels, means the receiver is simply not tuned to any active frequency, resulting in no reception, which is a tuning error, not a range limitation.