Following are few statements regarding noise in communication system:a) Atmospheric noise, shot noise, solar noise are examples of external noise sourcesb) Noise temperature is useful in dealing with UHF noisec) Thermal agitation is the only source of noise in receiverChoose the correct answer:

Following are few statements regarding noise in communication system:a

1.	Following are few statements regarding noise in communication system:a) Atmospheric noise, shot noise, solar noise are examples of external noise sourcesb) Noise temperature is useful in dealing with UHF noisec) Thermal agitation is the only source of noise in receiverChoose the correct answer:
A.	Only b)
B.	and b)
C.	and c)
D.	and c)
Answer» B. and b)