This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General obstetrics, Subject name: Anatomy
Percentage of water in amniotic fluid : 
Select and explain. 
A. 42%, B. 64%, C. 76%, D. 99%
D: 99%
Answer: D: 99% 
Explanation: Composition of amniotic fluid : Water -98-99% Solid -1-2% -Inorganic, Organic, Suspended paicles. Ref:Datta Obs 9e pg 34.