Consider the relation given below and ind the maximum normal form applicable to them1. R(A, B) WITH productions { A > B }2. R(A, B) WITH productions { B > A }3. R(A, B) WITH productions {A > B, B > A }4. R(A, B, C) WITH productions {A >B, B > A, AB > C }

• A. 1, 2 and 3 are in 3NF and 4 is in BCNF
• B. 1 and 2 are in BCNF and 3 and 4 are in 3NF
• C. All are in 3NF
• D. All are in BCNF