Question 2 a) Consider the table below: в С A bi b2 ai Ci ai C2 b3 b3 a2 Ci a2 C2 For each of the functional dependencies listed below, indicate whether it holds or not. If it holds, write OK. If it...

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Extracted text: Question 2 a) Consider the table below: в С A bi b2 ai Ci ai C2 b3 b3 a2 Ci a2 C2 For each of the functional dependencies listed below, indicate whether it holds or not. If it holds, write OK. If it does not hold, indicate two tuples in the table above that violate the functional dependency. Refer to the tuples as 1,2,3,4; for example, +you may say that A → C fails because of the tuples 3,4. FD Holds? В — А C-A А — В С — В A - C В — С ВС — А АС — В АВ — С