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: Social & Preventive Medicine
Dose of Chloroquine when used for Chemoprohylaxis of Malaria is 
Select and explain. 
A. 300 mg twice/week, B. 600 mg once/week, C. 300 mg Once/week, D. 600 mg/week
C: 300 mg Once/week
Answer: C: 300 mg Once/week 
Explanation: None