Identify the isoelectronic species from the following.

  • A
    $K^{+}, Ca^{2+}, Sc^{3+}, Cl^{-}$
  • B
    $Na^{+}, Mg^{2+}, Al^{3+}, Cl^{-}$
  • C
    $K^{+}, Cl^{-}, Mg^{2+}, Sc^{3+}$
  • D
    $Na^{+}, Ca^{2+}, Sc^{3+}, F^{-}$

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