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: Gynaecology & Obstetrics
If division of feilized egg occurs at 4-8th day what kind of mono zygotic twin pregnancy will it give rise to : 
Select and explain. 
A. Diamnionic dichroionic, B. Diamnionic monochorionic, C. Monoamnionic monochorionic, D. Conjoined twins
B: Diamnionic monochorionic
Answer: B: Diamnionic monochorionic 
Explanation: Diamnionic monochorionic