Which is the correct order of ionic sizes $(At. \, No. : Ce = 58, Sn = 50, Yb = 70, Lu = 71)$?

• A
  $Sn^{4+} > Ce^{4+} > Yb^{3+} > Lu^{3+}$
• B
  $Ce^{4+} > Sn^{4+} > Yb^{3+} > Lu^{3+}$
• C
  $Lu^{3+} > Yb^{3+} > Sn^{4+} > Ce^{4+}$
• D
  $Sn^{4+} > Yb^{3+} > Ce^{4+} > Lu^{3+}$