In an Ethical Decision-Making Workshop, Once Each Small Group Has

In an ethical decision-making workshop, once each small group has a list of prioritized solutions and an implementation plan, how should the facilitator change the dynamics of the group?

A) Each group member should become a form of devil's advocate and argue a different reason why the implementation plan should not succeed.
B) The group should be divided in half, with one side supporting the highest priority option and half supporting the second-highest priority option.
C) All but one member should support the implementation plan, and one member should be chosen to argue against it.
D) The group should continue to function as a unit but shift its focus to opposing the plans of rival groups.