Correct option is A
In electronic communication systems, undesirable interference refers to any unwanted signal or disturbance that affects the transmission or reception of a signal. This interference is broadly categorized as noise.
Noise:
· It is a random or unwanted electrical signal that interferes with the transmission or processing of a desired signal.
· Noise can originate from various sources, such as thermal agitation, external electromagnetic interference, or even manufacturing imperfections in electronic devices.
· Examples include thermal noise, shot noise, and interference from nearby devices.
