Correct option is C
A. NRZ-L (Non-Return-to-Zero-Level): NRZ-L is a binary code where the level of the signal is used to represent the binary digits. It has a bandwidth equal to half the data rate.
Match: IV. B = N/2
B. 2B1Q (2 Binary 1 Quaternary): 2B1Q is a multilevel binary code where two binary digits are combined into one quaternary symbol. It effectively reduces the bandwidth to a quarter of the data rate.
Match: I. B = N/4
C. 4-D-PAM 5 (4-Dimensional 5-Level Pulse Amplitude Modulation): This is a more complex coding scheme that uses multiple levels and dimensions to encode data. It typically has a lower bandwidth compared to simpler schemes, often reducing the bandwidth to an eighth of the data rate.
Match: II. B = N/8
D. MLT-3 (Multilevel Transmission 3): MLT-3 is a line coding scheme that uses three levels and changes state to represent binary data, which reduces the required bandwidth to a third of the data rate.
Match: III. B = N/3