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': 'With iron treatment Hb increases by : \nSelect and explain. \nA. 2 gm/week, B. 1 gm/week, C. 2 gm/month, D. 1 gm/month', 'role': 'user'}, {'content': 'Answer: B \nExplanation: 1 gm/week', 'role': 'assistant'}]