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Relation R has eight attributes ABCDEFGH. Fields of R contain only atomic values. F={CH→G, A→BC, B→CFH, E→A, F→EG} is a set of functional dependencies (FDs) so that F+ is exactly the set of FDs that hold for R.How many candidate keys does the relation R have?
Options:
A .  3
B .  4
C .  5
D .  6
Answer: Option B


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