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
Drug of choice for malaria in pregnancy is : 
Select and explain. 
A. Proguanil, B. Chloroquine, C. Artemisinin, D. Halofantrine
B: Chloroquine
Answer: B: Chloroquine 
Explanation: None