Question: Key-value (K-V) stores are more flexible than relational databases because in K-V stores: a. multiple records in a table can have the same key value

Key-value (K-V) stores are more flexible than relational databases because in K-V stores: a. multiple records in a table can have the same key value b.records in a table can hold different sets of fields c. a query always matches exactly one record d. all of the above e. none of the above

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