The option to create a report using the OAuth Token Audit Activity logs is the best choice for obtaining granular insight into data accessed by third-party applications in G Suite. OAuth tokens are necessary for third-party applications to access user data securely, and the audit logs specifically document every instance of when an OAuth token is used, including details such as the application and user involved, the date and time of access, and the specific data that was accessed.
This level of detail is essential for organizations looking to understand how third-party applications interact with their data, maintain compliance with data protection regulations, and ensure that sensitive information is appropriately safeguarded. With this method, administrators can track which applications have authorized access to specific user data and assess whether such access aligns with organizational policies.
The other options, while useful for monitoring different elements within G Suite, do not focus specifically on the access patterns of third-party applications and therefore do not provide the same level of granularity regarding external application interactions.