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
Chandler's index is used for - 
Select and explain. 
A. Ankylostoma duodenale, B. Ascaris lumbricoides, C. Strongyloides, D. Trichuris trichiura
A: Ankylostoma duodenale
Answer: A: Ankylostoma duodenale 
Explanation: None