According to the PMP objectives and content, the first course of action should be to assess the current resources and determine if the existing team members can take on additional tasks or responsibilities. This aligns with the principle of optimizing resource allocation and ensuring that the team is effectively utilized before seeking additional resources or funding1.
References:
PMP Examination Content Outline - June 20191.
A Guide to the Project Management Body of Knowledge (PMBOK Guide)2.
Professional in Business Analysis Reference Materials3.

A relative-weighting approach is a technique that assigns numerical values to the benefits and costs of each product feature, and then calculates a score for each feature by dividing the benefits by the costs. The features with the highest scores are considered the most valuable and are prioritized accordingly. This technique is part of the Collect Requirements process, which involves defining and documenting the stakeholders' needs and expectations for the project outcome1. To perform this technique effectively, the project manager should ask the team to perform collaborative work that is coordinated by the project manager. This will ensure that the team members share their inputs, opinions, and preferences, and that the project manager facilitates the process and resolves any conflicts or issues. Relying on the expert judgment of the product owner, using a market-based strategy, or engaging the project sponsor are not the best options, as they may not reflect the views and needs of all the stakeholders, or they may introduce bias or external influences into the prioritization process. References: 1 PMBOKGuide, 6th edition, page 140.

The laissez-faire leadership style is characterized by allowing the team to make their own decisions and work independently. This style is suitable for teams that are mature, competent, and motivated, which seems to be the case with the project manager's team, as they have previously worked together on construction projects.
The laissez-faire approach trusts the team's abilities and encourages autonomy and self-organization, which can lead to increased innovation and creativity.
: The information is based on the leadership styles described in the Project Management Professional (PMP) and Professional in Business Analysis (PMI-PBA) reference materials, which outline various leadership styles and their applications in project management contexts1234.

According to the PMBOK Guide, the project manager should communicate the organizational culture and project goal to the external stakeholders in a formal and written manner. This will help the stakeholders understand the context, scope, objectives, and deliverables of the project, as well as the roles and responsibilities of the project team and other stakeholders. A report is an appropriate communication tool for this purpose, as it can provide a comprehensive and structured overview of the project information. The other options are either too informal, indirect, or ineffective for communicating the organizational culture and project goal to the external stakeholders. References: PMBOK Guide, 6th edition, page 376-377, section
10.1.2.1.

According to the Agile Practice Guide, one of the principles of agile project management is to "build projects around motivated individuals. Give them the environment and support they need and trust them to get the job done."1 Therefore, the project manager should not ignore, punish, or override the team member who has a different opinion, but rather try to understand their perspective and work with them to reach a consensus. This can foster a positive team culture and improve the quality of the sprint goals. References: 1: Agile Practice Guide, page 10.