If $q$ is false and $p \wedge q \leftrightarrow r$ is true,then which one of the following statements is a tautology?

  • A
    $(p \vee r) \to (p \wedge r)$
  • B
    $(p \wedge r) \to (p \vee r)$
  • C
    $p \wedge r$
  • D
    $p \vee r$

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