Question

what is the primary purpose of a project charter?
to allocate project resources
to establish project milestones
to provide a roadmap for the project
to outline project risks

Explanation:

A project charter's primary purpose is to define the project's objectives, scope, and high - level plan, which serves as a roadmap. Allocating resources is part of project management execution, establishing milestones is part of scheduling, and outlining risks is part of risk management. The project charter gives the overall direction and framework, acting as a roadmap.

Answer:

To provide a roadmap for the project