Who Is the Best Example of a Facilitator

Who is the best example of a facilitator?

A) Doreen makes sure Jamie's opinion is heard even though it is unpopular.
B) Tom presents a clear and convincing argument for his viewpoint.
C) Diego mentions that he thinks Jake's opinion makes the most sense.
D) Margaret dominates the discussion so much that some other viewpoints are not heard.
E) Trung presents a rebuttal to another person's point of view.