Answer:
B
Explanation:
None of the other answers fix the description, so it's research. Good luck with your work. :)
The answer to your question is A., Standing in the line.
A discussion moderator, or debate moderator, is a person whose role is to act as a neutral participant in a debate or discussion, holds participants to time limits and tries to keep them from straying off the topic of the questions being raised in the debate.
<em>An example of this is ^^^^^^^</em>
Chris Wallace, he played the moderator in the debates for Donald Trump and Joe Biden.