Azure Storage provides multiple services, each with different data models:
Azure Files
Provides fully managed file shares accessible via SMB/NFS.
Works like a traditional file system (folders and files).
Not key/value.
Azure Blob Storage
Object storage for unstructured data like images, videos, backups, logs.
Identified by container + blob name.
Not strictly a key/value store (though blob name acts as a key).
Azure Table Storage #
A NoSQL key/value store for structured, non-relational data.
Data is stored in tables as entities (rows), with properties (columns).
Entities are indexed by PartitionKey + RowKey, forming a unique key/value pair.
Specifically designed for scalable key/value lookups.
Azure Queue Storage
Provides message queueing for communication between components.
Stores ordered messages, not key/value pairs.
The answer: C. Azure Table
Microsoft References
Azure Table Storage overview
Azure Storage services comparison