Which DTA Maintenance Tool module would you use to grant group access to a person?

The correct choice is People because this module specifically deals with managing user accounts and their respective roles within the system. It allows administrators to add individuals to groups or modify their access rights, thereby facilitating group access assignments. This is crucial for ensuring that teams or departments have the necessary permissions to perform their functions effectively within the organization.

In contrast, other modules serve different purposes. The Documents module is focused on managing files and documentation, while the Reports module is dedicated to creating and viewing reports generated by the system. The Settings module provides configuration options for the system but does not directly handle user or group access management. Thus, the People module is the appropriate choice when you need to manage access permissions related to groups and users.