After a power failure, some users in the London office whose mailbox databases are hosted on EX07 report that they cannot access email. You need to restore mailbox access for the affected users as quickly as possible.What should you do?
A. Create a recovery database on another Exchange server, and then restore the database from EX07 to the recovery database
B. On a new server, run setup.exe /Mode:RecoverServer from the Exchange Server 2019 installation media, and then restore a backup of the database
C. On a server in DAG15, create a copy of the mailbox databases hosted on EX07
D. Copy the database files from EX07, and then mount the database on a server in DAG15
