Answer:
A. Gatekeeping
Explanation:
In the given text, the producer has to decide which segment to he should broadcast. A segment about lice is more fitting than the one about languages, and the producer chooses that one. By doing so, he is filtering the information and deciding what the public will have access to. That's what gatekeeping is. In this process, it's not only determined which information is selected, but what the content and nature of the messages will be, as well.
I was walking beside the river.
