Explanation

Box 1: vertices and edges
Gremlin API is selected.
You can use the Gremlin language to create graph entities (vertices and edges), modify properties within those entities, perform queries and traversals, and delete entities.
Box 2: US East
The (US) West US is selected as the primary location and geo- redundancy is enabled.
The secondary location for West US is East US.
Note: When a storage account is created, the customer chooses the primary location for their storage account.
However, the secondary location for the storage account is fixed and customers do not have the ability to change this. The following table shows the current primary and secondary location pairings:

Reference:
https://docs.microsoft.com/en-us/azure/cosmos-db/gremlin-support
https://technet2.github.io/Wiki/blogs/windowsazurestorage/windows-azure-storage-redundancy-options-and-read