Let $R$ be the relation in the set $\{1, 2, 3, 4\}$ given by $R = \{(1, 2), (2, 2), (1, 1), (4, 4), (1, 3), (3, 3), (3, 2)\}$. Choose the correct answer.

  • A
    $R$ is reflexive and symmetric but not transitive.
  • B
    $R$ is reflexive and transitive but not symmetric.
  • C
    $R$ is symmetric and transitive but not reflexive.
  • D
    $R$ is an equivalence relation.

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