Box 1: StorageV2 -
You may only tier your object storage data to hot, cool, or archive in Blob storage and General Purpose v2 (GPv2) accounts. General Purpose v1 (GPv1) accounts do not support tiering.
General-purpose v2 accounts deliver the lowest per-gigabyte capacity prices for Azure Storage, as well as industry-competitive transaction prices.
Box 2: Standard_GRS -
Geo-redundant storage (GRS): Cross-regional replication to protect against region-wide unavailability.
Incorrect Answers:
Locally-redundant storage (LRS): A simple, low-cost replication strategy. Data is replicated within a single storage scale unit.
Read-access geo-redundant storage (RA-GRS): Cross-regional replication with read access to the replica. RA-GRS provides read-only access to the data in the secondary location, in addition to geo-replication across two regions, but is more expensive compared to GRS.
Reference:
https://docs.microsoft.com/en-us/azure/storage/common/storage-redundancy-grs
https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-storage-tiers
