3. Consider the following relation and functional dependencies: R(a, b, c, d, e, f, g. h, D. (a)(d, e, f. (b, c) g). (e)8) Find the key of this relation based on these functional dependencies. (10 pts) 4. Consider the following relation (a table) and a functional dependency: R(a, b.sd, e, f, g, h), (b, c, d) (e, f. Normalization is a process of pulling out a smaller table in a table to reduce data redundancy. Consequently the original table will shrink accordingly. The newly created two tables will replace the original table. Now normalize R. (10 pts)