This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Gynaecology & Obstetrics
the distention media used in diagnostic hysteroscopy with bipolar couesy is 
Select and explain. 
A. CO2, B. NS, C. Dextran 70, D. Glycine
B: NS
Answer: B: NS 
Explanation: ref : gynecology shaw