In $O_2^ - ,$ ${O_2}$ and $O_2^{ - 2}$ molecular species, the total number of antibonding electrons respectively are

  • A

    $7, 6, 8$

  • B

    $1, 0, 2$

  • C

    $6, 6, 6$

  • D

    $8, 6, 8$

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