Question: Consider the relation R={A, B, C, D, E, F, G, H, I, J} and the set of functional dependencies F = {{A, B)-C,{B, D}-{E, F},

Consider the relation R={A, B, C, D, E, F, G, H, I, J} and the set of functional dependencies F = {{A, B)-C,{B, D}-{E, F}, {A, D)-{G, H), A-I, HJ). What is the key for R? Select one: O a (A,B) O b. {A, B, D) O c. {A, D) O d. {B,D, H}

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