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: Pathology
[{'content': "Cabot's ring is seen in \nSelect and explain. \nA. Megaloblastic anemia, B. Sickle cell disease, C. Iron deficiency anemia, D. Autoimmune anemia", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Megaloblastic anemia Cabot rings are seen most commonly in megaloblastic anemia, followed by lead poisoning.", 'role': 'assistant'}]