Final answer:
An example of a NoSQL datastore of the 'Document Store' type is MongoDB, which allows for storage and management of JSON-like documents.
Step-by-step explanation:
An example of a NoSQL datastore of the "Document Store" type is MongoDB. Document stores are designed to store, retrieve, and manage document-oriented information, also known as semi-structured data. MongoDB is a very popular document store that allows developers to work with JSON-like documents in a dynamic schema, rather than the traditional table-based structure found in relational databases.
Other options listed, such as REDIS, Cassandra, and HBase, represent different types of NoSQL databases. REDIS is primarily a key-value store, Cassandra is a wide-column store, and HBase is another wide-column store that runs on top of the Hadoop Distributed File System (HDFS).