Which process involves managing the project team and their roles?

The correct choice focuses on Human Resource Management, which is essential in project management as it specifically deals with managing the project team and defining their roles. This process includes activities such as resource planning, team acquisition, developing team skills, and overseeing performance. By managing the project team effectively, this aspect of project management ensures that each member understands their responsibilities and can contribute to the project's success.

In contrast, Project Scope Management pertains to defining and controlling what is and is not included in the project, which does not directly address team roles. Change Management focuses on handling changes to the project’s scope, schedule, or resources, often dealing more with project adjustments than with team dynamics. Quality Management involves ensuring that the project delivers products or services that meet established standards and requirements, again not directly tied to managing team roles. Each of these processes is important, but Human Resource Management is specifically concerned with the management of the project team and their respective roles.