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 of the following can be given as a single dose antimalarial for P.vivax malaria \nSelect and explain. \nA. Atovaquone + Proguanil, B. Artemisinin, C. Quinine + Tetracycline, D. Pyrimethamine + Sulfadoxime', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]