The project manager plays the role of a mediator in this situation, as this is part of managing stakeholder engagement. Managing stakeholder engagement involves communicating and working with stakeholders to meet their needs and expectations, address issues, and foster appropriate stakeholder involvement. By scheduling a meeting with the two stakeholders, the project manager acts as a neutral third party who facilitates the discussion and helps them reach a mutually acceptable solution. The other options are not the best ways to describe the project manager’s role, as they either imply a biased, authoritative, or passive approach to conflict resolution. References: (Professional in Business Analysis Reference Materials source and documents)

PMBOK Guide, 6th edition, Chapter 13, Section 13.3.2.4

PMP Exam Content Outline, June 2019, Domain II, Task 9

PMP Sample Test Questions, Question 393