According to the PMBOK Guide, the project scope is the work that needs to be accomplished to deliver a product, service, or result with the specified features and functions1. The project scope statement defines the project scope and documents the project deliverables, acceptance criteria, assumptions, and constraints2. The project manager is responsible for ensuring that the project scope is managed and controlled throughout the project life cycle3. If the contractor submits an offer for additional work that is already included in the initial project scope, the project manager should refuse the offer as it is not a valid change request and does not add any value to the project. The project manager should also communicate with the contractor to clarify the project scope and avoid any misunderstandings or conflicts. References:
* 1: PMBOK Guide, 6th edition, p. 154
* 2: PMBOK Guide, 6th edition, p. 157
* 3: PMBOK Guide, 6th edition, p. 171

According to the Project Management Professional (PMP) Reference Materials, two actions that a project manager should consider while launching a new virtual team are:
* Evaluate the project manager's own strengths and weaknesses as a virtual team leader to identify avoidable pitfalls. This can help the project manager to develop the necessary skills and competencies to effectively lead, guide, and nurture a virtual team, such as communication, collaboration, motivation, trust, and cultural awareness12. The project manager can also seek feedback, coaching, or mentoring from other experienced virtual team leaders to improve their performance and avoid common mistakes3.
* Establish in the beginning, how progress will be monitored and the best means for communicating progress. This can help the project manager to set clear expectations, goals, and standards for the virtual team, and to ensure that the team members are aligned, accountable, and informed throughout the project4 . The project manager can also use various communication and collaboration tools, such as video conferencing, chat, email, project management software, and online dashboards, to facilitate regular and effective communication and reporting among the virtual team members and stakeholders .
The other options, A, C, and E, are not actions that a project manager should consider while launching a new virtual team, but rather actions that a project manager should consider while planning or executing a project with a virtual team. Recruiting the best resources within the organization to be part of the virtual team is a human resource planning activity that involves identifying and acquiring the project team members.
Identifying the types and quantities of resources required for each work package or activity is a resource management activity that involves estimating and allocating the resources needed to complete the project work. Verifying if team members are on more than one team and cannot devote enough time to this team is a performance management activity that involves monitoring and controlling the team members' availability, workload, and productivity. References: 1: A Guide to the Project Management Body of Knowledge (PMBOKGuide) - Sixth Edition, Chapter 9.4.2.2, "Team Development Stages". 2: Agile Practice Guide, Chapter 2.2, "Agile Principles". 3: Best practices for managing and developing virtual project teams, Section
"Preparing for success - the project manager's role". 4: A Guide to the Project Management Body of Knowledge (PMBOKGuide) - Sixth Edition, Chapter 9.4.3.1, "Team Performance Assessment". : A Guide to the Project Management Body of Knowledge (PMBOKGuide) - Sixth Edition, Chapter 10.2.2.1,
"Communication Requirements Analysis". : 10 Tips to Manage Virtual Project Teams - Ganttic, Section
"Communication tools". : Project and resource planning tools - Ganttic, Section "Project and resource planning tools". : A Guide to the Project Management Body of Knowledge (PMBOKGuide) - Sixth Edition, Chapter 9.1.3.1, "Project Team". : A Guide to the Project Management Body of Knowledge (PMBOKGuide) - Sixth Edition, Chapter 9.2.3.1, "Resource Requirements". : A Guide to the Project Management Body of Knowledge (PMBOKGuide) - Sixth Edition, Chapter 9.6.3.1, "Work Performance Data".

The project manager should treat the client's complaint as a change request and assess the effect on the project's goals. This is because the client's expectation may not have been captured or communicated clearly in the initial debriefing, or the client may have changed their mind after seeing the product. In either case, the project manager should follow the change management process, which involves identifying, documenting, analyzing, approving, and implementing changes that affect the project scope, schedule, cost, quality, or risk.
The project manager should also communicate with the client and the project team about the change request and its impact on the project's goals, such as delivering value, satisfying customer needs, and meeting stakeholder expectations. References: (Professional in Business Analysis Reference Materials source and documents)
* PMBOKGuide, 6th edition, Section 4.6.1, "Perform Integrated Change Control: Inputs"
* PMBOKGuide, 6th edition, Section 4.6.3.1, "Perform Integrated Change Control: Outputs - Change Requests"
* PMBOKGuide, 6th edition, Section 5.6.1, "Validate Scope: Inputs"
* PMBOKGuide, 6th edition, Section 5.6.3.1, "Validate Scope: Outputs - Accepted Deliverables"
* PMI-PBA Guide, 1st edition, Section 6.2.1, "Manage Changes: Inputs"
* PMI-PBA Guide, 1st edition, Section 6.2.2, "Manage Changes: Tools and Techniques"
* PMI-PBA Guide, 1st edition, Section 6.2.3, "Manage Changes: Outputs"

In an iterative project, it's crucial that the team understands the principles of iterative development. If the team is struggling with these principles, the project manager should step in to mentor and coach the team.
This approach ensures that the team develops the necessary skills and knowledge to effectively work within an iterative framework. It also fosters a learning environment where team members can continuously improve their skills and performance. References: Project Management Professional (PMP) Reference Materials source and documents: PMI - Project Management Professional (PMP), PMI - PMBOK Guide and Standards, Professional in Business Analysis Reference Materials study guide: PMI - Professional in Business Analysis