30. Midway through his first semester, one of the teams in Dan's class came to him with a problem.Of the four team members, all of them were doing their jobs except Stacey. The group hadagreed to have Stacey as a member since they all knew she had a high GPA and worked hard onall of her individual assignments. However, as a team member the group agreed that they werenot getting Stacey's best efforts. Which of the following is a possible explanation for Stacey'sbehavior?
(A) role conflict
(B) social loafing
(C) groupthink
(D) status differentiation