Problem 8 Consider a relation R AB E A, B, C, D, E, F, G, H) together with the functional dependencies: CD onsider RI (A, B, C, D) with the above functional dependencies. What would be a candidate key for R1? a) C (5 points) b) Is RI (A, B, C, D) in second normal form? If not, justify why. (3 points) (5 points) (3 points) (5 points) in second normal form? If not, justify why c) Is RI (A. B, C, D) and R2 (A, B, E) a lossless join decomposition of R' (A, B, C d) Is RI (A, B, C, D), R2 (A, B, E), R3 (F, G, H) and R4 (B, F) a dependency e) Using the following set of functional dependencies, find a Minimal Basis of these D, E)? Explain why or why not. preserving decomposition of R? Explain why or why not. functional dependencies: AB E CD FG GH