Which two issues can cause a Cisco Unified Communications Manager to fail to register with its Cisco SAF Forwarder?

A.	An H.323 SAF trunk was configured instead of a SIP SAF trunk.
B.	No directory number patterns were configured on the Cisco Unified Communications Manager.
C.	CCD advertising service was not activated.
D.	Incorrect user credentials were used on the SAF Forwarder.
E.	CCD requesting service was not activated.