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: Medicine
[{'content': 'A young female has the following lab values : MCV-70 Hb 10 gm% serum iron 60, serum feritin 100,the diagnosis is - \nSelect and explain. \nA. Thalassemia trait, B. Chronic iron deficiency anemia, C. Megaloblastic anemia, D. Anaemia of chronic infection', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]