Which statement is true about the role of data controls in ADF? (Choose the best answer.)
A.
They implement business service functions.
B.
They persist data from the database for display in the user interface.
C.
They provide a consistent abstraction over the implementation details of a business service.
D.
They are a Java API that is called directly from each UI component to populate the component with data.
E.
They are the primary source of validation logic to control the behavior of your business service.
Explanation:
Once you have created your business services, you create the data controls that use metadata interfaces to
abstract the implementation of those services and describe their operations and data collections, including
information about the properties, methods, and types involved.
https://docs.oracle.com/middleware/1212/adf/ADFDC/adfm.htm#ADFDC769