The correct answers are Read-Access Geo-Redundant Storage (RA-GRS), Read-Access Geo-Zone-Redundant Storage (RA-GZRS) and Locally Redundant Storage (LRS).

Read-Access Geo-Redundant Storage (RA-GRS) replicates your data within the primary region and asynchronously to a paired secondary region and it also provides read access to the secondary location which improves availability during a regional outage.

Read-Access Geo-Zone-Redundant Storage (RA-GZRS) adds zone redundancy in the primary region and it also geo-replicates to a secondary region while providing read access to the secondary so it protects against both zone and regional failures.

Locally Redundant Storage (LRS) keeps three copies of your data within a single region to protect against hardware failures but it does not protect against a full datacenter or regional outage.

Object-Level Redundancy (OLR) is not an Azure Storage redundancy option and it appears to be a made up term so it is not correct.

Distributed Redundancy Storage (DRS) is not an Azure Storage redundancy option and it is not recognized in Azure documentation so it is not correct.

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