Your network has a Lync Server 2010 infrastructure that contains four servers. The servers are configured as shown in the following table.
Server nameServer role
Server1 Standard Edition Front End Server
Server2 Enterprise Edition Front End Server
Server3 Director
Server4 Microsoft SQL Server 2008
You need to deploy the Archiving Server role. To which server should you deploy the Archiving Server role?

A.
Server4

B.
Server3

C.
Server1

D.
Server2

Explanation:
SQL Server must already be installed on the server on which you want the archiving database server to reside. (http://technet.microsoft.com/en-us/library/gg398523.aspx)