Review the resource pool and review the project objectives are activities that the project manager should undertake after accepting a new project. Reviewing the resource pool involves identifying and evaluating the availability, skills, and competencies of the human and material resources that are needed for the project.
Reviewing the project objectives involves understanding and clarifying the expected outcomes and benefits of the project and how they align with the organizational strategy and stakeholder expectations. These activities can help to plan and execute the project effectively and efficiently.

A self-organized team is a typical characteristic of Scrum, which is an agile framework for managing complex projects. A self-organized team is a group of motivated and skilled individuals who have the autonomy and authority to make decisions and collaborate on how to deliver the project goals. A self-organized team does not rely on a manager or a leader to assign tasks, monitor progress, or resolve issues. Instead, a self-organized team uses Scrum events, such as daily stand-ups, sprint planning, sprint review, and sprint retrospective, to coordinate their work, communicate with each other, and inspect and adapt their process and product123.
References = CompTIA Project+ Study Guide: Exam PK0-005, 3rd Edition, Chapter 2: Project Methodologies, p. 55; Scrum Characteristics - Scrumversity; What is Scrum? | Scrum.org; Characteristics of a Great Scrum Team | Scrum.org

When stakeholders express concerns about the volume of communication, it's important to review and adjust
the communication plan to ensure it meets the project's needs and stakeholders' preferences. A RACI matrix is
useful for defining roles and responsibilities but does not address communication frequency or methods
directly. Escalating the issue may not be necessary if it can be resolved by revising the plan. Informing the
CCB (Change Control Board) to stop communication is not advisable as the CCB's role is to oversee changes,
not to manage day-to-day communications. References = The CompTIA Project+ Certification Study Guide
provides detailed information on managing the project life cycle, establishing communication plans, and
handling stakeholder concerns1.

A gantt chart is a visual representation of a project timeline that shows the tasks, durations, dependencies, and resources of a project in a horizontal bar chart format. A gantt chart can help a project manager to calculate the progress of the whole project scope by comparing the planned and actual start and finish dates of each task, as well as the percentage of completion and the critical path. A gantt chart is also a useful tool for communicating the project status and performance to the sponsor and other stakeholders. Therefore, the first document that the project manager should update to calculate the progress of the whole project scope is the gantt chart. Reference = CompTIA Project+ Study Guide: Exam PK0-005, 3rd Edition, Chapter 6: Schedule Management1; CompTIA Project+ Certification Study Guide, 3rd Edition, Chapter 6: Schedule Management2; What Is a Gantt Chart? 7 Examples for Project Management3

This answer is based on the best practice of choosing a project management methodology that suits the project characteristics and environment12. Scrum is an agile framework that is designed to handle complex and uncertain projects with frequent changes and tight deadlines34. Scrum involves a small, cross-functional team that works in short iterations called sprints, delivering incremental and potentially shippable products at the end of each sprint5. Scrum also allows for continuous feedback and improvement through daily stand-up meetings, sprint reviews, and retrospectives6. Scrum is suitable for this project because it can accommodate the high uncertainty, the risk of requirement changes, and the tight deadlines, while also enabling the two developers to collaborate effectively and deliver value to the customer. References = CompTIA Project+ Certification Study Guide7, CompTIA Project+ Certification Exam Objectives8, Project Management Methodologies Comparison (11 PM Methods)6, Project Management Methodologies: 12 Best Frameworks
[2023]7, What is Scrum?5, Scrum Methodology: The Ultimate Guide6