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
Insecticide of choice for phlebotamus argentipes 
Select and explain. 
A. DDT, B. Malathoin, C. BHC, D. Pyrethrum
A: DDT
Answer: A: DDT 
Explanation: None