There Are Many Types of Noise

There are many types of noise.Of the noise types below,which is NOT correctly defined?

A) line noise - noise that occurs at discrete frequencies
B) drift noise - low frequency noise caused by flickering or drifting of light intensity
C) Gaussian noise - noise amplitude is dependent on frequency
D) Johnson noise - random fluctuations of electrons in electronic devices
E) shot noise - noise that arises from random variation in the number of photons reaching the detector or small number of electrons and holes generated in a semiconductor