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7. Suppose a relation in a logical model looks like this: (worth 2 points) EntityTypeA (AttrA, AttrB, AttrC, AttrD, AttrE) Note that in this relation,

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7. Suppose a relation in a logical model looks like this: (worth 2 points) EntityTypeA (AttrA, AttrB, AttrC, AttrD, AttrE) Note that in this relation, we have a composite key. Suppose we know that AttrB alone determines AttrD. Suppose AttrA and AttrB together determine AttrC and AttrE. a. Which normal form does this relation violate? b. Why? Normalize the relation and provide a new logical model so that the problem identified in b is removed c. d. What normal form is each of your relations in cabove is

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