Which of the following Boolean expression is a tautology ?

  • [JEE MAIN 2021]
  • A

    $(p \wedge q) \vee(p \vee q)$

  • B

    $(p \wedge q) \vee(p \rightarrow q)$

  • C

    $(p \wedge q) \wedge(p \rightarrow q)$

  • D

    $( p \wedge q ) \rightarrow( p \rightarrow q )$

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