In a PCM system if the code word length is increased from 6 to 8 bits, the signal to quantization noise ratio improves by

In a PCM system if the code word length is increased from 6 to 8 bits,

1.	In a PCM system if the code word length is increased from 6 to 8 bits, the signal to quantization noise ratio improves by
A.	8/6 dB
B.	12 dB
C.	16 dB
D.	8 dB
Answer» C. 16 dB