The following are components of a database except ________ .

Option A: user data
This option is incorrect. User data is a fundamental component of a database. It includes all the actual data stored within the database, representing real-world information.

Option B: metadata
This option is incorrect. Metadata is a crucial component of a database. It contains information about the data, such as data types, structures, and relationships between different data elements.

Option C: reports
This option is correct. Reports are not a fundamental component of a database. They are typically generated from the database to present data in a readable format but are not a part of the database itself.

Option D: indexes
This option is incorrect. Indexes are an essential component of a database. They are used to improve the speed and efficiency of data retrieval operations by providing quick access paths to the data.

Conclusion:
The components of a database include user data, metadata, and indexes. Reports are not a component of a database, making Option C: reports the correct answer.