As part of the Direct and Manage Project Work process, the project manager conducts an iteration planning meeting. The meeting is dominated by the most senior developer who frequently and sharply interrupts the other team members. The project manager wants to ensure that during the next iteration planning meeting all voices are heard. What is the project manager's best course of action? Invite the sponsor to the next iteration planning meeting to have the senior developer be more thoughtful in the presence of the sponsor Post a copy of the team's social contract in the meeting room and review the contents at the start of the next iteration planning meeting Inform the senior developer's functional manager about this unacceptable behavior and request that the manager take disciplinary action Discuss the issue with the senior developer, and for the next meeting allocate equal amounts of time for each team member to speak