What should the Architect do to assess the cause of the issue?

Cloud Kicks recently decided to change its role hierarchy.

After this change was deployed, multiple staff members at Cloud Kicks reported to management that they can now view reports that they do not own and should not have access to.

What should the Architect do to assess the cause of the issue?
A . While logged in as one of the staff members, navigate to their user record and inspect their profile and role membership.
B . While logged in as the System Administrator, navigate to a sample account and use the Sharing button to determine who has access.
C . While logged in as the one of the staff members, navigate to a sample account and use the Sharing button to determine who has access.
D . While logged in as the System Administrator, use the Field Accessibility Viewer to view a matrix of who has access to Accounts.

Answer: C