What are the two reasons for the messages?

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Your customer reports that their FAS2554A system reports multi-path HA when running the sysconfig command. However, Config Advisor reports an error about incorrect cabling.

What are the two reasons for the messages? (Choose two.)
A . Shelves 10 and 20 have different IOM modules and must be in separate stacks.
B . The FAS2554 system is cabled incorrectly to shelf ID 20.
C . The DS2246 shelf is wrong; the shelf ID must be 11.
D . Disk shelves 10 and 20 are cabled incorrectly to each other.

Answer: B,D