A. Provides support for a data manipulation language The most important service provided by a database management system (DBMS) is its ability to support a data manipulation language (DML). The DML allows users to interact with the database, enabling them to perform various operations such as inserting, updating, deleting, and querying data in the database. The DBMS acts as an intermediary between the users and the database, providing a convenient and standardized way for users to interact with the data without needing to know the underlying data storage and retrieval mechanisms. The DML simplifies data access and manipulation, ensuring data integrity, security, and consistency. It allows users to focus on the logic and operations they want to perform on the data, abstracting away the complexities of data management.