When installing a duplexed Cisco Unified Contact Center Enterprise solution with Cisco Agent Desktop, which of the following statements regarding the Cisco Agent Desktop server license is correct?

A.
The license for the Cisco Agent Desktop server is tied to the MAC address of the server, so each Cisco Agent Desktop server must have a unique license file.

B.
In a duplexed Cisco Agent Desktop server deployment, a license file is obtained and applied to the primary Cisco Agent Desktop server.

C.
In a duplexed Cisco Agent Desktop server deployment, a license file is obtained and applied to the secondary Cisco Agent Desktop server.

D.
In a duplexed Cisco Agent Desktop server deployment, a license file is obtained for the primary Cisco Agent Desktop server for half of the agents and a second license file is obtained for the secondary Cisco Agent Desktop server for the rest of the agents.