Your network contains two Exchange Server 2010 Mailbox servers named Server1 and
Server2. Server1 hosts a public folder named Folder1.
You need to ensure that Folder1 is available if Server1 is offline.
What should you do?

A.
From the properties of Folder1, add Server2.

B.
From the properties of Folder1, modify the folder limits.

C.
Add Server1 and Server2 to a Client Access server array.

D.
Add Server1 and Server2 to a database availability group (DAG).