How are CTI ports in a CTI Port Group added on the CRS Server?（）

A、They must be created in Cisco Unified CallManager in ascending order (i.e., 1001, 1002, and 1003) with no gaps or missing numbers in the group.  

B、They can be assigned as a range of ports in CRS Application Administration.  

C、They are the same as the CTI Route Points in the Cisco Unified CallManager and automatically built in CRS when they are associated with the JTAPI user.  

D、They are the same as the CTI Route Points in the Cisco Unified CallManager and automatically built in CRS when they are associated with the RM JTAPI user.