The project manager should have a meeting with the project sponsor and main stakeholders first after discovering that some of the legal requirements have not been addressed during the project concept preparation. The project sponsor and main stakeholders are the key decision-makers and influencers of the project. They have the authority and responsibility to approve or reject any changes to the project scope, budget, or schedule. Having a meeting with them can help to communicate the issue, assess the impact, explore alternatives, and seek guidance on how to proceed with the project34

The project sponsor is the person who provides the authority, funding, and support for the project. The project sponsor can also help to influence and engage the key stakeholders who are essential for the success of the project. If several stakeholders have declined the invitation for the kickoff meeting, which is an important event to establish the vision, scope, and expectations of the project, the project manager should escalate this issue to the project sponsor and seek their assistance to ensure the participation of the stakeholders1, p. 47

Explanation
The project manager should have considered environmental, social, and governance (ESG) factors during initial planning to prevent the situation of receiving a penalty for disposing of some computers improperly.
ESG factors are criteria that measure the sustainability and ethical impact of an organization's activities. They include aspects such as environmental protection, social responsibility, human rights, diversity, and corporate governance. Considering ESG factors can help to reduce risks, improve reputation, and enhance performance of an organization12

The SOW (statement of work) is a document that defines the scope, deliverables, schedule, and resources of a project. It is a contractual agreement between the buyer and the seller that should be changed first when there are approved changes to the product. Changing the SOW will ensure that the project expectations and requirements are updated and aligned with the customer's requests. The other options are not documents that need to be changed first, but rather metrics or tools that can be used to measure or manage the project. Reference = CompTIA Project+ PK0-005 Certification Study Guide, Chapter 3: Initiating Projects; CompTIA Project+ Certification Exam Objectives, Domain 2: Project Planning, Objective 2.1: Develop a project scope document.