Q. What is the use of Referential Integrity in MS Access?

• (A) It allow to enter a value in the foreign key field of a child table if that value exist in the primary key of the parent table
• (B) It does not allow to enter a value in the foreign key field of a child table if that value exist in the primary key of the parent table
• (C) It allow to enter a value in the Primary key field of a child table if that value exist in the Foreign key of the parent table
• (D) None of above