In a Pulse Code Modulated system, the number of bits is increased from 7 to 8 bits. The improvement in signal to quantization noise ratio will be

In a Pulse Code Modulated system, the number of bits is increased from

1.	In a Pulse Code Modulated system, the number of bits is increased from 7 to 8 bits. The improvement in signal to quantization noise ratio will be
A.	2 dB
B.	4 dB
C.	6 dB
D.	8 dB
Answer» D. 8 dB