Which two commands, one of which can be used to verify Cisco IP phone sip registration, and one of which can be used to verify Cisco IP phone sccp registration on Cisco Unified Communications Manager Express?

Which two commands, one of which can be used to verify Cisco IP phone sip registration, and one of which can be used to verify Cisco IP phone sccp registration on Cisco Unified Communications Manager Express? (Choose two.)
A. show telephony-service ephone-dn
B. show voice register session-server
C. show ephone registered
D. show ccm-manager hosts
E. show sip-ua registrar status