Your network contains two Exchange Server 2010 Edge Transport servers. The network also contains five Hub Transport servers in two Active Directory sites. All e-mail sent to the network is received by the Edge Transport servers. You plan to configure anti-spam filtering. You need to ensure that the anti-spam filtering configurations are applied to both Edge Transport servers. The solution must use a minimum amount of administrative effort.

What should you do?

A.
Configure EdgeSync synchronization.

B.
Implement Active Directory Federation Services (AD FS).

C.
Join both Edge Transport servers to an Active Directory domain and then create a forest trust from the internal forest.

D.
Manually configure settings on one Edge Transport server and then export the settings to the other Edge Transport server.