What will happen to the developing foetus if the $Corpus \text{ } Luteum$ regresses in the third week of pregnancy?

  • A
    Endometrium starts secreting progesterone and maintains the pregnancy.
  • B
    $Corpus \text{ } Albicans$ will maintain the pregnancy.
  • C
    Placenta will secrete $hCG$ and maintain pregnancy.
  • D
    Progesterone level depletes and foetus is aborted.

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