What is the most logical reason for this issue?

As the newly hired Admin in charge of Google Workspace, you learn that the organization has been using Google Workspace for months and has configured several security rules for accessing Google Drive. A week after you start your role, users start to complain that they cannot access Google Drive anymore from one satellite office and that they receive an error message that “a company policy is blocking access to this app.” The users have no issue with Gmail or Google Calendar. While investigating, you learn that both this office’s Internet Service Provider (ISP) and the global IP address when accessing the internet were changed over the weekend.

What is the most logical reason for this issue?
A . An access level was defined based on the IP range and applied to Google Drive via Context-Aware Access.
B. Under Drive and Docs > Sharing Settings, the “Whitelisted domains” list needs to be updated to add the new ISP domain.
C. The Network Mask defined in Security > Settings > SSO with 3rd Party IdPs should be
updated to reflect the new IP range.
D. You need to raise a ticket to Google Cloud Support to have your new IP ranges registered for Drive API access.

Answer: A