Select the correct order of ionic radii for the given ions:

  • A
    $Yb^{3+} < Sm^{3+} < Dy^{3+} < Pr^{3+}$
  • B
    $Yb^{3+} < Dy^{3+} < Sm^{3+} < Pr^{3+}$
  • C
    $Pr^{3+} < Sm^{3+} < Dy^{3+} < Yb^{3+}$
  • D
    $Pr^{3+} < Sm^{3+} < Yb^{3+} < Dy^{3+}$

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