Why Can Low-Level Modulated FM Signals Be Amplified by Class

Multiple Choice

Why can low-level modulated FM signals be amplified by class C power amplifier stages without distorting unlike AM or SSB signals?

A) These FM signals have only one upper and lower sideband frequency components.
B) These FM signals do not vary in amplitude.
C) The FM signals do not have a carrier frequency component.
D) These FM signals have larger bandwidths than do AM or SSB signals.