Multiple choice

Consider the following functional dependencies: AB$\rightarrow$CD, AF $\rightarrow$ D,DE $\rightarrow$F,C $\rightarrow$G, F $\rightarrow$E,G $\rightarrow$A. Which one of the following options is false?

  1. {CF}* = {ACDEFG}

  2. {BG}* = {ABCDG}

  3. {AF}* = {ACDEFG}

  4. {AB}* = {ABCDFG
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

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