How does Ms. Chen act as a moderator in this part of
the transcript?
O She reminds the group of the discussion rules and
asks them to use a respectful tone.
O She helps the group handle a conflict between two
or more of the participants.
O She provides several topics as possible options for
the group to discuss
O She asks the participants to clarify their viewpoints
and introduce supporting facts.

The way that Ms. Chen acts as a moderator in this part of the transcript is:

This refers to a person who is in charge of maintaining order and the proper way of conducting a debate.

With this in mind, we can see that Mrs Chen is a moderator and she effectively does her job by asking the participants to clarify and to give supporting facts.

Read more about moderator of debate here:
link

which of the following was specifically permitted by the emancipation proclamation?

free african americans were allowed to fight for the confederacy.

free african americans were allowed to enlist in the union army and navy.

enslaved people in border states were allowed to move to the north.

enslaved people in border states were allowed to become confederate citizens. nrg myjr i64gq3y45h5t5

what are the choices for abcd