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
If in a locality API is more than 2, the folloiwng is done- 
Select and explain. 
A. 2 round of DDT per year with active surveillance, B. 2 rounds of DDT per year with active and passive surveillance, C. Only active and passive surveillance, D. 2 rounds of DDT per year only
B: 2 rounds of DDT per year with active and passive surveillance
Answer: B: 2 rounds of DDT per year with active and passive surveillance 
Explanation: Ans. is 'b' i.e., 2 rounds of DDT per year with active and passive surveillance