The following table has two attributes A and C where A is the primary key and C is the foreign key referencing A with on-delete cascade.A C-----2 43 44 35 27 29 56 4 The set of all tuples that must be additionally deleted to preserve referential integrity when the tuple (2,4) is deleted is:

• A. (3,4) and (6,4)
• B. (5,2) and (7,2)
• C. (5,2), (7,2) and (9,5)
• D. (3,4), (4,3) and (6,4)