According to the PMBOK Guide, the project manager is responsible for managing the project team and resolving any conflicts that may arise among team members. The project manager should use appropriate interpersonal skills, such as active listening, problem-solving, and negotiation, to address the issue with the disruptive team member and help them improve their performance and behavior. Providing team-building activities, informing the functional manager, or encouraging self-governance are not the best options, as they do not address the root cause of the problem or show empathy and support to the team member who is going through a difficult personal situation. References: PMBOK Guide, 6th edition, pages 349-350, 361-362.

According to the PMBOK Guide, a root cause analysis is a technique that involves identifying the underlying causes of problems or issues in a project. A root cause analysis can help the project manager and the team to understand the factors that contribute to the negative group behaviors and the lack of motivation and productivity. By conducting a root cause analysis session, the project manager can facilitate a collaborative problem-solving process that involves asking why the problem occurred, finding the root causes, and developing corrective actions to address them. A root cause analysis can also help to improve the team's communication, trust, and morale, as well as the project's quality, risk, and stakeholder management.
Defining and analyzing performance metrics, escalating poor performance to functional managers, or updating the stakeholder engagement plan are not effective actions for improving the project team's performance, as they do not address the root causes of the problem, and may create more resentment, frustration, or conflict among the team members. References: PMBOK Guide, Sixth Edition, pages 176, 558; PMI-PBA Guide, First Edition, pages 87, 102.

The project manager should explain that more features can be planned in upcoming iterations and begin building the product12. This approach aligns with the principles of Agile project management, which emphasizes iterative development and the delivery of incremental value12. By starting the build phase, the team can start delivering value and receiving feedback, which can inform the planning and development of additional features in future iterations12. This approach also helps to prevent scope creep, which can delay the project and increase costs3. References:
https://www.projectpractical.com/12-steps-to-initiate-and-plan-a-successful-project/ https://asana.com
/resources/project-initiation

The attendance list is important because it is evidence that risk review meetings were held with the appropriate project team members, as this is a requirement of the risk management plan. The risk management plan defines how risk management activities will be performed, recorded, and monitored throughout the project, and it also identifies the roles and responsibilities of the project team members and stakeholders in relation to risk management. The attendance list shows who participated in the risk review meetings, which are periodic meetings to review and update the risk register, the risk response plan, and the risk metrics. The attendance list also helps to ensure that the risk review meetings are effective and efficient, as it allows the project manager to follow up with the attendees on their assigned actions and to communicate the results of the meetings to the relevant stakeholders. References:
* PMBOK Guide, 6th edition, page 414: "The risk management plan is a component of the project management plan that describes how risk management activities will be structured and performed."
* PMBOK Guide, 6th edition, page 415: "The risk management plan should document the roles and responsibilities of individuals and groups for each risk management process, as well as their availability, competency, and authority levels."
* PMBOK Guide, 6th edition, page 443: "Risk review meetings are held periodically to review and update the risk register, the risk response plan, and the risk metrics. The frequency of these meetings is determined by the project manager and the project team based on the project needs and the level of risk exposure."
* PMBOK Guide, 6th edition, page 444: "The project manager should document the results of the risk review meetings and communicate them to the project team and other stakeholders as appropriate."

Budget at Completion (BAC) is the total planned value of the project. It is calculated by multiplying the number of work units by the cost per unit.
BAC = Total miles × Cost per mile
= 10 miles × US$15,000
= US$150,000
The percentage of work completed (80%) is irrelevant for this specific calculation, which only asks for the original planned total budget (BAC).
References:
PMBOK Guide - Seventh Edition, Measurement Performance Domain
PMI Practice Standard for Earned Value Management
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