$A-$ Events after the formation of zygote are called post-fertilization events.
$R -$ In viviparous animals,a young one develops outside the mother's body.

  • A
    $A$ and $R$ are correct.
  • B
    $A$ and $R$ are incorrect.
  • C
    $A$ is correct,$R$ is incorrect.
  • D
    $A$ is incorrect,$R$ is correct.

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