$A$ rational number is selected at random from the distinct rational numbers of the form $p/q$ formed with $p$ and $q$ belonging to the set $\{1, 2, 3, 4, 5, 6\}$. The probability that the rational number selected is a proper fraction is:

  • A
    $1/2$
  • B
    $5/6$
  • C
    $11/23$
  • D
    $13/35$

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