SQL is a data sublanguage.

Option A: True - SQL (Structured Query Language) is primarily designed for managing and querying data in relational database management systems (RDBMS). It is often referred to as a data sublanguage because its primary purpose is to interact with and manipulate data within databases. SQL is not a full programming language like Java or Python but rather focuses on data retrieval, manipulation, and definition within the context of databases.

Conclusion:
The statement "SQL is a data sublanguage" is Option A: True. Therefore, the correct answer is True.