Erin, Abbey, Pattie, and Gillian Run a Small Non-Profit and Are

Erin, Abbey, Pattie, and Gillian run a small non-profit and are drafting next year's budget.Erin, the executive director, would like to avoid groupthink as they make decisions.What can Erin do to help prevent groupthink?

A) Appoint Gillian to challenge ideas as the devil's advocate
B) Remain impartial rather than show a preference for a particular course of action
C) Encourage the group to work on the draft as a whole rather than as individuals
D) All of the above