Explanation:

The conflict described is a communication issue within the team. According to the PMBOK Guide, one of the key roles of a project manager is to manage team dynamics and resolve conflicts. In this case, reviewing the ground rules for collaboration within the team can help remind team members of the expected behaviors and communication norms, which can help resolve the issue. Moving a team member to a different team (Option A) may not solve the underlying issue, reporting to supervisors (Option C) may escalate the situation unnecessarily, and modifying the communications management plan (Option D) may not directly address the interpersonal conflict. References: Project Management Body of Knowledge (PMBOK) Guide, 6th Edition, Section 9.5.2.1: Conflict Management

According to the PMP Exam Content Outline, one of the tasks of the project manager is to "Assess stakeholder needs, interests, values, and influence, and determine the appropriate approach for engaging stakeholders across the project life cycle" (Task 1, Domain I: People). This implies that the project manager should evaluate the engagement needs of stakeholders based on their expectations, requirements, preferences, and level of influence and interest in the project. By doing so, the project manager can tailor the communication and collaboration methods to ensure high involvement from the stakeholders throughout the project. This will help to build trust, manage expectations, and increase stakeholder satisfaction. References:
* PMP Exam Content Outline, Domain I: People, Task 1, page 61
* PBA Exam Content Outline, Domain II: Planning, Task 3, page 102
* A Guide to the Project Management Body of Knowledge (PMBOK Guide), Sixth Edition, Chapter 13:
Project Stakeholder Management, Section 13.2: Plan Stakeholder Engagement, page 5133
* Business Analysis for Practitioners: A Practice Guide, Chapter 4: Needs Assessment, Section 4.2:
Identify Stakeholders, page 694