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: Pharmacology
Drug of choice for Chagas disease: 
Select and explain. 
A. Metronidazole, B. Nitazoxanide, C. Pentamidine, D. Benzimidazole
D: Benzimidazole
Answer: D: Benzimidazole 
Explanation: Chagas disease or American trypanosomiasis is treated using benzimidazole and Nifurtimox is used as alternative.