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
In coagulation failure serum level of fibrinogen is less than : 
Select and explain. 
A. 150 mg, B. 100 mg, C. 200 mg, D. 250 mg
B: 100 mg
Answer: B: 100 mg 
Explanation: 100 mg