Identify the missing word(s) in the following sentence within the context of Microsoft Azure. Backups are generated automatically for Azure SQL Database. A full backup is created [A], a differential every [B], and transaction log backups every [C]. All backups are located in read-access, geo-redundant (RA-GRS) blobs replicated to a datacentre that is paired based on Azure rules. That means backups are safe from an outage in a single data centre.