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
All of the follow ing are larva control measures except - 
Select and explain. 
A. Gambusia, B. Intermittent irrigation, C. DDT, D. paris green
C: DDT
Answer: C: DDT 
Explanation: Ans. is `c' i.e., DDT