Consider a relation R(A,B,C,D,E). For which of the following sets of FDs is R in Boyce-Codd Normal Form (BCNF)?
BDE --> A, AC --> E, B --> C, DE --> A
BE --> D, B --> E, D --> E, CD --> A
ABD --> C, ACD --> E, ACE --> B, BC --> E
BCD -->E, BDE --> C, BE --> D, BE --> A

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