This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: parasitology, Subject name: Microbiology
Vector for T.cruzi is - 
Select and explain. 
A. Reduvid bug, B. Tsetse fly, C. Sand fly, D. Hard tick
A: Reduvid bug
Answer: A: Reduvid bug 
Explanation: T.cruzi passes its life cycle I two host Definitive host- humans Intermediate host-triatomine bugs Humans become infectious when reduviid bug bites and the infected faecal matter is discharged near bite wound (refer pgno:49 baveja 3 rd edition)