Identify the correct statement.

  • A
    Only one megaspore present towards chalazal end remains functional.
  • B
    $3$ megaspores present towards chalazal end degenerate gradually.
  • C
    Each megaspore mother cell directly develops into a megaspore.
  • D
    Each female gametophyte is $7-$celled and $7-$nucleated structure.

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