During an office debate, Jan is assigned the job of voicing possible objections to proposals. The goal is to generate critical thinking and reality testing. Jan is playing the role of , objective coach perspective critic dialectic moderator devil's advocate

Devil's advocate

Explanation: Playing the role of a devil's advocate simply means to make objection or disagree against a point, proposition or an idea put forth by someone usually during a debate. The objection to that individual's idea or proposition isn't because one doesn't agree or the point is invalid, The objection is raised in other to cement the validity of the claim, generate critical thinking and reality testing on the issue , view the claim from different perspectives or make the discussion more interesting.

i believe your answer is mountains.