In a Customer's Local Area Network, Some Segments in the Network

In a customer's Local Area Network, some segments in the network do not allow multicast for transmitting data. When configuring the Contact Center Manager Administration (CCMA) using the RTR (Real-Time Reporting) Registry Settings, how can network bandwidth usage be limited?

A) In the Minimum Unicast Sessions box, type the minimum number of simultaneous unicast sessions that the server is directed to allow.  
B) In the Maximum Unicast Sessions box, type the maximum number of simultaneous unicast sessions that the server is directed to allow.  
C) In the Output Rate box, type the minimum number of simultaneous outputs that the server is directed to allow.
D) In the Output Rate box, type the maximum number of simultaneous outputs that the server is directed to allow.