You have an Exchange organization. All servers in the organization have Exchange Server
2010 Service Pack 1 (SP1) installed.
You need to ensure that an administrator can recover hard-deleted e-mail messages from a
user’s mailbox indefinitely.
What should you do?

A.
From the Exchange Management Shell, run the Export-Mailbox cmdlet.

B.
Create a managed custom folder and managed content settings.

C.
From the Exchange Management Shell, run Set-MailboxDatabase -DumpsterStatistics
$true.

D.
From the properties of the mailbox, enable litigation hold.

E.
From the properties of the mailbox database, select the This database can be overwritten
by a restore check box.

F.
From the Exchange Management Shell, run the New-MailboxSearch cmdlet.

G.
From the properties of the mailbox database, modify the Deletion Settings.

H.
From the Exchange Management Shell, run the New-MailboxExportRequest cmdlet.

I.
Create a retention policy and a retention tag.

J.
From the properties of the mailbox, enable single item recovery.
K.
From the properties of the mailbox database, modify the maintenance schedule.
L.
From the properties of the mailbox, enable retention hold.
M.
From the properties of a Mailbox server, modify the System Settings.

Explanation: