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: Pharmacology
[{'content': 'Which does not causes megaloblastic anemia - \nSelect and explain. \nA. Phenytoin, B. >Chloroquine, C. >Sulfasalazine, D. >Alcohol', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Chloroquine Dietary causes of folate deficiency Old age Infancy Povey AlcoholismQ Chronic invalids Psychiatric disturbed', 'role': 'assistant'}]