You have a Microsoft Exchange Server organization that contains the servers shown in the following table.
You have the users shown in the following table.
All users have a Standard CAL.
You need to provide an archive mailbox to each user in the organization.
What should you do before you provide each user with an archive mailbox?
A. Purchase an Enterprise CAL for each user
B. Move all the mailboxes to EX02
C. Upgrade EX01 and EX02 to Exchange Server 2019 Enterprise.
D. Upgrade EX01 to Exchange Server 2019 Standard
