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
Epidemic typhus is transmitted by ? 
Select and explain. 
A. Flea, B. Mite, C. Louse, D. Tick
C: Louse
Answer: C: Louse 
Explanation: Ans. is 'c' i.e., Louse