The Main Purpose of Pre-Emphasis and De-Emphasis Networks in FM

Multiple Choice

The main purpose of pre-emphasis and de-emphasis networks in FM communication systems is to:

A) allow for a reduction in bandwidth of the FM communication channel
B) provide a near constant noise reduction capability between low and high frequency intelligence signals
C) filter out noise produced by the FM transmitter's modulator stage
D) allow for stereo broadcasts to be received by a monaural receiver