What two things happen when the CRS Publisher Database on an HRDB expansion server fails?

What two things happen when the CRS Publisher Database on an HRDB expansion server fails?

A.
All call processign immediately begins using the CRS Subscriber Database.

B.
Calls in the queue are dropped

C.
Agent calls are dropped.

D.
CRS conffiguration changes are blocked until the CRS Publisher Database is restored and syncronized with the CRS Subscriber Database

Explanation: