What is the first step to make Ad Hoc reporting available for a customer?

What is the first step to make Ad Hoc reporting available for a customer?
A . Enable Ad Hoc report builder and domain schemas in Provisioning.
B . Enable Table reports by assigning Role Based Permissions.
C . Enable Table reports in Admin Center-> Upgrade Center.
D . Enable Table reports in Admin Center-> Reporting & Analytics.

Answer: A