This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
[{'content': 'Drug of choice for treatment of malaria due to P. Vivax in a 25 year old pregnant female is \nSelect and explain. \nA. Chloroquine, B. Primaquine2, C. Sulfadoxine -pyrimethanone, D. Quinine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Refer KDT 6/e 786 DOC for malaria in pregnant -chloroquine DOC for chloroquine resistant malaria in pregnant -Quinine', 'role': 'assistant'}]