This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: D.O.C, Subject name: Pharmacology
Drug of choice in malaria in pregnancy? 
Select and explain. 
A. Proguanil, B. Chloroquine, C. Artemesin, D. Halofantarine
B: Chloroquine
Answer: B: Chloroquine 
Explanation: ANSWER: (B) ChloroquineREF: William's obstetrics 22nd ed chapter 58Chloroquine is the treatment of choice for malaria caused by Plasmodium species sensitive to the drug. For the woman with chloroquine-resistant infection, mefloquine is given orally.