Your company stores product information in a Microsoft SQL Server 2005 database. You create a Business Data Catalog (BDC) definition to search for product information within the database. You need to ensure that incremental crawls can be performed in the database for indexing. What should you do?

A.
Create a GenericInvoker method.

B.
Create a Finder method.

C.
Create a ViewAccessors method to return a different set of fields from the database.

D.
Define an IDEnumerator method that has a return field that represents the last update time of the database.