Which of the following individuals BEST represents the authority to authorize changes to the triple constraints?

A functional manager oversees a specific department or function and lacks the broader project authority to approve changes to project-level triple constraints.

The project sponsor is the individual who champions the project, provides resources, and holds ultimate responsibility for its success, making them the appropriate authority to approve major changes to the project's foundational constraints. They typically own the project's business case and align it with organizational strategy.

A team member is responsible for executing tasks within the project and does not have the authority to make decisions regarding the project's overall constraints.

While a project manager manages changes, they usually do not have the sole authority to approve major changes to the triple constraints; such decisions often require sponsor approval due to their impact on the project's business case and organizational objectives.