Question: 10. For the relational schema R(A, B, C, D, E, G), which of the following functional dependencies contain an extraneous attribute on the LHS: (ABC

10. For the relational schema R(A, B, C, D, E, G), which of the following functional dependencies contain an extraneous attribute on the LHS: (ABC D; BE:CG: EG D;E*4) a) ABC-D b) EGD c) Both (a) and (b) d) None of the above 11. Given FD- A C, AC- D,E AD, D H J, what is A+ when computed with respect to FD? a) (A) b) (A, C) c) A, C. D) d) (A, C, D, H) 12. Using the same finctional dependencies, FD, as the previous question, what is E+ when computed with respect to FD? a) b) c) d) (E) (A, C, D, E, H) (A, D) (A, C, D, H)

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