Discussion
The capacity of a communication channel is measured in
Answer: B
Channel capacity is measured by its bandwidth.
Bandwidth is the range of frequencies the channel can carry, and by the Shannon-Hartley theorem the maximum data rate is \[C = B\log_2\!\left(1 + \frac{S}{N}\right)\] so capacity rises directly with bandwidth. Baud rate counts signal changes per second, which is a different thing.
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