Which of the following best describes Structured Query Language (SQL)?

Structured Query Language (SQL) is fundamentally a programming language designed specifically for managing and manipulating relational databases. It provides a standardized way to communicate with the database by allowing users to perform operations such as querying data, updating records, and managing database structures. This capability makes it crucial for tasks involving data retrieval and management in a structured format.

The focus of SQL is on data interaction and database management rather than functions typically associated with spreadsheets, data analysis software, or communication protocols. While spreadsheets may utilize SQL for querying databases or analyzing data, they do not encapsulate the essence of SQL itself. Similarly, although some data analysis software can leverage SQL for backend data processing, they do not directly pertain to what SQL fundamentally represents. Lastly, internet communication protocols are designed for data exchange over the web, which does not align with SQL's purpose of database interaction.

Thus, option B accurately captures the essence of SQL as a tool for database communication, reinforcing its importance in data analytics and management.