Naomi is a Cloud Data Engineer working on object-level storage for an enterprise data transformation project where large volumes of data are required to be ingested. In Production, there’s a requirement that while any of the object/block Blobs are deleted accidentally, they should be recovered within the next ten days. 
What feature of Azure Storage for Blob can she turn on?

Answer options:

A.Malware protection for Blob
B.Immutable Blob storage
C.Storage backup
D.Soft delete
E.None of the above

Correct Answer: D 

https://docs.microsoft.com/en-us/azure/storage/blobs/security-recommendations