The given figure shows the human foetus within the uterus with few structures marked as $A,\,B,\,C$ and $D$.

Which of the following options shows the correct labeling ?

• A

  $A\to $ Umbilical cord with its veins, $B\to $ Chorionic villi, $C\to $ Antrum, $D\to $ Plug of mucus in cervix

• B

  $A\to $ Umbilical cord with its vessels, $B\to $ Fimbriae, $C\to $ Oocyte, $D\to $ Plug of mucus in vagina

• C

  $A\to $ Umbilical cord with its vessels, $B\to $ Placental villi, $C\to $ Yolk sac, $D\to $ Plug of mucus in cervix

• D

  $A\to $ Umbilical cord with its veins, $B\to $ Placental villi, $C\to $ Trophoblast, $D\to $ Plug of mucus in vagina