This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Placenta and Chorion Development, Subject name: Gynaecology & Obstetrics
Normal weight of term placenta in gms - 
Select and explain. 
A. 300, B. 500, C. 700, D. 1000
B: 500
Answer: B: 500 
Explanation: Ans. is 'b' i.e., 500 "The placenta at term is almost circular disk with a diameter ofl5-20cms & thickness of about 3 cms at its centre5. It thins towards the edge. It feels spongy & weighs about 500gmsf the proportion of the weight of the baby being roughly 1:6 at term and occupies the 30% of the uterine wall "