Q. 3 An analog signal is band-limited to 4 kHz, sampled at the Nyquist rate and the samples are quantized into 4 levels. The quantized levels are assumed to be independent and equally probable. If we transmit two quantized samples per second, the information rate is ________ bits / second.
(A) 1
(B) 2
(C) 3
(D) 4
Answer: D
Explanation: