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': 'Megaloblastic anemia is/are not caused by ? \nSelect and explain. \nA. Vitamin B12 deficiency, B. Folic acid deficiency, C. Sodium valproate, D. All', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Sodium valproate Vitamin B12 deficiency, folic acid deficiency and alcohol cause megaloblastic anemia. o Amongst anticonvulsants, phenytoin and phenobarbitone cause megaloblastic anemia (not sodium valproate) o Aplastic anemia does not cause megaloblastic anemia.", 'role': 'assistant'}]