This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hemodynamics, Subject name: Pathology
[{'content': 'Heinz bodies are composed of? \nSelect and explain. \nA. DNA, B. RNA, C. Iron, D. Denatured haemoglobin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Summary of Inclusions in RBCsHowell jolly bodiesDNABasophilic stipplingRNA remnantsSiderotic granules/ pappenhiemer bodiesIronHeinz bodiesDenatured Haemoglobin', 'role': 'assistant'}]