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: Gynaecology & Obstetrics
[{'content': 'Drug C/I in pregnancy is : \nSelect and explain. \nA. Chloroquine, B. Primaquine, C. Amodiaquine, D. Quinine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Primaquine', 'role': 'assistant'}]