$(i)$ In a family of six persons $A, B, C, D, E$ and $F$,there are two married couples.
$(ii)$ $D$ is the grandmother of $A$ and mother of $B$.
$(iii)$ $C$ is the wife of $B$ and mother of $F$.
$(iv)$ $F$ is the granddaughter of $E$.
Which of the following is true?

  • A
    $A$ is the brother of $F$
  • B
    $A$ is the sister of $F$
  • C
    $D$ has two grandsons
  • D
    None of these

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