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': 'Drugs not causing hemolysis - \nSelect and explain. \nA. Choloroquine, B. Primaquine, C. Nalidixic acid, D. Nitrofurantoin', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Choloroquine", 'role': 'assistant'}]