What are the three predefined migration services?

What are the three predefined migration services? (Choose three.)
A. any to Cisco 9000 ASR
B. any to Cisco 5000 ASR
C. Juniper to Cisco CRS-3
D. Cisco CRS-3 to Juniper
E. Cisco ASR 1001 upgrade
F. Cisco 7600 downgrade