This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Blood, Subject name: Pathology
[{'content': 'Spot the diagnosis \nSelect and explain. \nA. Lead poisoning, B. Macrocytic anemia, C. Howell-Jolly bodies, D. Heinz bodies', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref: Harsh Mohan, Textbook of Pathology, 7th ed. pg. 236The image shows basophilic stippling of red blood cells. The causes are:Mnemonic: LUNATIC* Lead poisoning* Unstable hemoglobin* Nucleotidase deficiency* Anemia due to B12 deficiency* Thalassemia* Infections* CirrhosisThe closest answer Pappenheimer bodies are basophilic erythrocytic inclusions that are usually located at the I periphery of the cell. They contain iron and stain with Prussian blue. Prussian blue is the stain that is used to identify that these Pappenheimer bodies are pure iron deposits, and not heme as in Heinz bodies.', 'role': 'assistant'}]