he data blocks in your form module are based on object tables. How would you create a master-detail relationship between two of these blocks?（）

• A、Use the Data Block Wizard and base the relation on a REF pointer. 
• B、In the Object Navigator, select the Relation node under the master block and click the Create icon. Build the relation manually and coordinate the blocks using triggers.
• C、Use the Data Block Wizard, and base the relation on the primary key-foreign key relationship in the database. 
• D、This task is not possible because master-detail relations can be implemented only for blocks based on relational tables.