Which Group Policy setting should you configure?

Your network contains a file server named Server1 that runs Windows Server 2012 R2.All
client computers run Windows 8.
You need to ensure that when users are connected to the network, they always use local
offline files that are cached from Server1.
Which Group Policy setting should you configure?

A.
Configure Slow link speed.

B.
Turn on economical application of administratively assigned Offline Files.

C.
Configure slow-link mode.

D.
Enable file synchronization on costed networks.

Explanation:
Offline Files is used to provide faster access to cached files and redirected folders.
References:

http://technet.microsoft.com/en-us/library/hh968298.aspx
http://technet.microsoft.com/en-us/library/cc957631.aspx
http://technet.microsoft.com/en-us/library/jj127408.aspx