NRM Q.4

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NRM Q.4

4In a schema with attributes A, B, C, D, and E following set of functional dependencies are given
A --> B
A -->C
CD —>E
B --> D
E —> A
Which of the following functional dependencies is implied by the above set.

Option : B
Explanation : CD—>A {CD —>E;E —> A; E —>C}
CD —> C
BC —> CD
B—>D;
CD—>E;
E—>A;
A—>C
AC—>BC:
A—>B:
A—>C

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