All but Which of the Following Are Potential Weaknesses Associated

All but which of the following are potential weaknesses associated with self-managed work teams?

A) Departmental rivalries often flare up when a team is formed.
B) Handling human relations is a problem due to supervisors' absence.
C) Performance appraisals cannot be conducted due to supervisors' absence.
D) Workers lack sufficient time to handle the traditional supervisory responsibilities.