Answer :
A stakeholder in every project is (D.) a contractor hired to work on the project.
Contractors hired to work on a project typically have a specific role in executing tasks or delivering services according to their contractual obligations. Their involvement is often temporary and focused on specific deliverables rather than being invested in the project's overall success or outcomes. In contrast, stakeholders like the project manager, sponsor, and the public have significant interests in the project's goals, progress, and final results, which can impact them in various ways beyond the immediate scope of their contractual duties or involvement.