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
[{'content': 'Serum fibrinogen threshold to promote coagulation is considered adequate if it is above \nSelect and explain. \nA. 100mg %, B. 150mg %, C. 200mg %, D. 250mg %', 'role': 'user'}, {'content': 'Answer: B \nExplanation: 150mg / dL serum fibrinogen is considered adequate to promote coagulation.', 'role': 'assistant'}]