This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
Human placenta is: 
Select and explain. 
A. Hemochorial, B. Endothen - esdothelima, C. Chorio - endothelial, D. Non-Discoidal
A: Hemochorial
Answer: A: Hemochorial 
Explanation: Ans-A (Hemochorial) Ref: DC Dutta's Textbook of Obstetrics, 7th edn, pg 28Explanation:Human placentaStarts developing at 6 weeks and completed by 12 weeksHuman placenta is discoid, hemochorial, deciduateDevelopment of placentaFetal part - chorion frondosumMaternal part - deciduas hasalisCleavage of placenta following delivery occurs through deciduas spongiosumNormal weight - 500 gmsFunctional unit of placenta - chorionic villiUmbilical artery has 2 arteries and one veinNitabuch's membrane is absent in placenta accretaBlood flow in feto placental unit at term 500 ml/ minOxygen saturation inUmbilical vein -70-80 %Umbilical artery - 50 -60 %Intervillous space is filled with maternal bloodVolume of blood in mature placenta - 500 ml