transmission of messages in a communication is: a. a one-way street. b. a two-way street.

I think it's b

2 answers

You are correct. The listener hears through whatever "filters" or biases or knowledge he/she already has, so interprets the message provided by the speaker. What the speaker says may not be what the listener hears in every case.
Depending on the definitions of "street," I would disagree. If one person is the speaker, and one or more are just listeners, it would be a "one-way street, e.g., listening to radio or TV. There is no communication in the opposite direction, which is needed to make it a "two-way street."