How can a customer confirm the number of user licenses they have consumed?

Suppliers and Users

How can a customer confirm the number of user licenses they have consumed? Note: There are 2 correct answers to this question
A . Check the License Count from Administration > Site Manager > Audit Log
B. Export the list of users from Administration > User Manager > Users
C. Run the "User Names and Permissions" and "All Contract Workspaces" prepackaged reports
D. Contact their Customer Engagement Executive (CEE) to verify the count

Answer: C,D