This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Anatomy
[{'content': 'All the following are true about beta thalassemia trait except \nSelect and explain. \nA. Microcytic hypochromic picture, B. Increased HbA2, C. Increased HbF, D. Patient requires blood transfusion', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ref Harrison 19 th ed pg 638 Most patients with beta thalassemia trait are asymptomatic and have a minimal or mild anemia. These patients do not require blood transfusions .', 'role': 'assistant'}]