This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti-Parasitic Drugs, Subject name: Pharmacology
This drug can clear trypanosomes from blood and lymph nodes and is active in late CNS stages of African sleeping sickness. It is: 
Select and explain. 
A. Emetine, B. Melarsoprol, C. Nifuimox, D. Suramin
B: Melarsoprol
Answer: B: Melarsoprol 
Explanation: Treatment of trypanosomiasis is: African sleeping sickness * Early Haemolymphatic stage : Suramin * Late CNS Stages : Melarsoprol South American disease (Chagas disease) : Benznidazole