Oracle NoSQL Database Cloud Service utilizes a key-value data model. Which of the following statements accurately describes the fundamental structure of data within this model?
A.
Data is organized into tables with predefined schemas, similar to relational databases.
B.
Data is stored as JSON documents with flexible structures, allowing for nested elements.
C.
Each data item is uniquely identified by a key, and the associated value can be any data type or structure.
D.
Relationships between data items are explicitly defined through foreign keys and joins.
E.
Data is structured in a graph format, representing entities as nodes and relationships as edges.
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