What are three Oracle recommended methods for migrating…

What are three Oracle recommended methods for migrating to Exadata with the least amount of down time?
(Choose three.)

A.
CTAS over a database link

B.
Expdp and Impdp

C.
Cross Platform Incremental Backup and Restore

D.
logical migration by using RMAN and GoldenGate

E.
physical migration by using Data Guard