What is one of the prerequisites to migrate a single instance queue manager to a multi-instance one?

What is one of the prerequisites to migrate a single instance queue manager to a multi-instance one?
A . Enable queue manager trace
B . Define CLUSRCVR and CLUSSDR channels
C . Move the queue manager data to a shared directory and reconfigure it to use that shared directory
D . Backup the single instance queue manager, shut it down, then create a new shared queue manager and restore backed up configuration

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Answer: C