Which of the Following Statements Regarding CMM Call Processing Is

Which of the following statements regarding CMM call processing is TRUE?

A) Call processing services are deployed in active-standby mode and resources are fully duplicated
B) Call processing services are deployed in pure stateless mode and UE contexts are only stored in an external database
C) Call processing services are deployed in hybrid mode and UE contexts are stored both locally and in an external database
D) Call processing services are deployed in all-active mode and UE contexts are only stored locally