Which services and applications should you identify?

Your network contains an Active Directory domain named contoso.com.
You plan to implement Network Load Balancing (NLB).
You need to identify which network services and applications can be load balanced by using NLB.
Which services and applications should you identify?

A.
Microsoft SQL Server 2012 Reporting Services

B.
A failover cluster

C.
A DHCP server

D.
A Microsoft Exchange Server 2010 Mailbox server

E.
A file server

F.
A Microsoft SharePoint Server 2010 front-end Web server