Question

Given: R(A,B,C,

  • D with FDs: A→B, B→C, C→D. Which of the following is true?
A A→D does not hold by transitivity
B A→D holds by Augmentation rule
C A→D holds by Transitivity rule of Armstrong's Axioms
D {A,B}→C is a partial dependency
E B→D is not derivable from the given FDs
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