A group of peace activists is attending a meeting to try to stop the US invasion of Iraq in 2003.  April comments that the President of the United States is a truly evil and insane man who only cares about the money his friends in the construction industry would make.  Mary, Pat, Tony, and Antwan agree.  When Rachel says that it is clear that Saddam Hussein has been a horrendous and brutal dictator, Olga is critical of her for expressing this view.  After hearing Olga's retort to Rachel, Sam decides to keep his mouth shut.  When no one says anything for a minute, April proposes that the group draft a position statement outlining the evilness of the President and the psychological reasons for this diagnosis. Mary, Pat, Tony, and Antwan again agree and the rest of the meeting is spent drafting this statement. 

Olga was serving as a ______________ in this group.

options:

a)	assessor of external stress

b)	devil's advocate

c)

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