Data manager is a DB2 component that is responsible to manage physical database. It performs logging and locking by invoking other system components.

In the context of IBM’s DB2 database management system, the term “Data Manager” typically refers to a component responsible for managing and controlling access to the database. The Data Manager in DB2 performs tasks such as handling database queries, transactions, and ensuring data integrity. It plays a crucial role in coordinating the interaction between the application programs and the underlying database.

In summary, the correct answer would be that the Data Manager in DB2 is a component responsible for managing and controlling access to the database.