Comprehensive and Detailed
When a team is demotivated, the best approach is participative-engage them directly in finding a solution. Meeting with the team to collaboratively define a feasible plan empowers them, shows respect for their input, and rebuilds motivation. It also helps regain commitment by reinforcing a sense of ownership.
* B focuses only on individual motivation but not planning.
* C may appear dismissive of the team's emotional state.
* D is premature without first involving the team.
Reference:
* PMBOK Guide - Seventh Edition, Team Performance and Stakeholder Engagement Domains
* Agile Practice Guide, Chapter on Servant Leadership and Team Empowerment

According to the principles of project integration management, it is essential to coordinate all elements of a project, including tasks, resources, and stakeholder expectations. When facing new technologies, supporting the team's initiative to learn and adapt is aligned with fostering an environment of continuous improvement and skill development. This approach not only leverages existing resources but also builds team capability and ownership, which are critical for the long-term success of the project1.
A Guide to the Project Management Body of Knowledge (PMBOK 6), which emphasizes the importance of integrating various processes and activities within the project management process groups2. Additionally, adapting to new technologies is a significant aspect of project management professional skills as outlined in the PMP certification resources1.

In Agile, the Product Owner is responsible for prioritizing the product backlog, which includes both features and technical work (such as reducing technical debt). If the technical debt is critical for performance, it must be addressed even at the expense of delivering new features. Once the team and Product Owner agree, these tasks should be pulled into the sprint backlog during sprint planning.
Per the Agile Practice Guide, "The product backlog may include technical work, bug fixes, and other items necessary for product health-not just features." Adding technical debt items to the sprint backlog is an accepted and necessary practice for long-term product sustainability.
Reference:
Agile Practice Guide, Ch. 5.4.2: "Managing Technical Debt"
Scrum Guide: Sprint Planning & Product Backlog
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Comprehensive and Detailed
When stakeholders request additional scope during project execution, the project manager should not make unilateral changes. Instead, the proper course is to process the change request through the approved governance or change control process. This ensures alignment with scope, budget, and timeline.
Reference:
* PMBOK Guide - Seventh Edition, Performance Domain: Delivery and Governance
* Change Control Process per PMI Standards