What steps should you take?

You use Azure Backup to back up a System Center Data Protection Manager Server.
You create a backup vault and add it to DPM server.
You need to ensure that you don’t accrue any extra cost.
What steps should you take? Select all that apply.
A. Disable the Azure Backup agent
B. Reissue the vault credential file
C. Change the storage redundancy option
D. Change the retention policy