Joe listens as his group members argue about the deadline for their project. Some say their supervisor set the deadline for May 1; others insist the deadline is April 15. Joe suddenly interjects: "We're spending way too much time arguing about this. Let's figure it out and get back to work." What group role is Joe playing? Question 11 options: A) Coordinator B) Orienter C) Diagnostician D) Energizer E) Evaluator