You have an Exchange Server 2010 organization named contoso.com. Your company is
Investigating a user named User1.
You need to prevent User1 from permanently deleting the items in his mailbox.
What should you run?
A.
Set-Mailbox User1 -LitigationHoldEnabled $true
B.
Set-Mailbox User1 -ModerationEnabled $true
C.
Set-Mailbox User1 -RetainDeletedItemsUntilBackup $true
D.
Set-Mailbox User1 -RetentionHoldEnabled $true