A. one-level channel
B. Zero-level channel
C. Two-level channel
D. Three-level channel
Correct Answer: Zero-level channel ✔
Last Updated: November 24, 2021
A. one-level channel
B. Zero-level channel
C. Two-level channel
D. Three-level channel
Correct Answer: Zero-level channel ✔
Last Updated: November 24, 2021