Your company has 5,000 users who work remotely.
You have 40 VPN servers that host the remote connections for the users.
You plan to deploy a RADIUS solution that contains five RADIUS servers.
You need to ensure that client authentication requests are distributed evenly between the five RADIUS servers.
What should you do?

A.
Install the Network Load Balancing role service on all of the RADIUS server. Configure all of the RADIUS
clients to connect to a virtual IP address.

B.
Deploy RAS Gateway to a new server. Configure all of the RADIUS clients to connect to RAS Gateway.

C.
Install the Failover Clustering role service on all of the RADIUS servers. Configure all of the RADIUS clients
to connect to the IP address of the cluster.

D.
Deploy a RADIUS proxy to a new server. Configure all of the RADIUS clients to connect to the RADIUS
proxy.

Explanation:
https://technet.microsoft.com/en-us/library/dd197433(v=ws.10).aspx