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': 'Choose the drug whose single oral dose affords clinical cure of uncomplicated malaria caused by chloroquine sensitive /resistant P. Falciparum as well as P. Vivax \nSelect and explain. \nA. Quinine, B. Mefloquine, C. Aesunate, D. Proguanil', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Mefloquine is effective as a single dose treatment of malaria. It can be used for both chloroquine sensitive as well resistant bacteria Refer KDT 6th/787', 'role': 'assistant'}]