General exam question G4A03

WhyA noise blanker works by reducing receiver gain during a noise pulse. A noise blanker detects the sharp leading edge of an impulse noise pulse and briefly reduces (blanks) the receiver's gain for the pulse's short duration, so the ear never hears the click, answer C. It doesn't work by widening bandwidth, redirecting pulses into a capacitor, or clipping audio peaks, that's a description of an audio clipper or speech processor, a different circuit entirely.