The given diagram $A$ and $B$ indicates:

  • A
    $A$-Zygotic twins; $B$-Dizygotic twins
  • B
    $A$-Dizygotic twins; $B$-Identical twins
  • C
    $A$-Zygotic twins; $B$-Identical twins
  • D
    $A$-Identical twins; $B$-Dizygotic twins

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