Which electronic configuration represents a noble gas?

  • A
    $1s^2 2s^2 2p^6 3s^2 3p^6 3d^{10} 4s^2$
  • B
    $1s^2 2s^2 2p^6 3s^2 3p^6$
  • C
    $1s^2 2s^2 2p^6 3p^6$
  • D
    $1s^2 2s^2 2p^6 3s^2$

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