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Biology, 20.08.2019 00:10 sidneybrsimmons

Given the below functional dependency, medicinecode โ†’ (medicinename, shelflife, manufacturer, dosage), which of the following statements is not known to be true?
a. manufacturer is functionally dependent on medicinecode.
b. medicinecode is a determinant.
c. medicinecode is a candidate key of the relation medicine (medicinename, shelflife, manufacturer, dosage).
d. medicinename is a determinant.
e. shelflife is functionally dependent on medicinecode.

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