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
According to modified plan of operation, endemic areas were classified based on 
Select and explain. 
A. API, B. ABER, C. Slide positivity rate, D. Slide falciparum rate
A: API
Answer: A: API 
Explanation: None