Which two are valid agent interfaces for Cisco Unified Contact Center Express?（）

• A、Macintosh workstation with Cisco IP Phone Agent  
• B、Linux workstation running CAD with IP Communicator  
• C、Linux workstation running CAD with Cisco Unified IP Phone 7960G  
• D、Citrix Terminal running CAD with IP Communicator  
• E、Citrix Terminal with Cisco IP Phone Agent  
• F、Windows workstation running CAD with Media Termination option