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Suppose that in the real world there is an entity type with attributes A and B. Suppose that real world constraints dictate that for each

Suppose that in the real world there is an entity type with attributes A and B. Suppose that real world constraints dictate that for each value of A there is one value of B. Which of the following describe the relationship between A and B?

a. A determines B.

b. B determines A.

c. A and B are independent.

d. A and B are functionally dependent.

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