This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
Endemic typhus is transmitted by? 
Select and explain. 
A. Flea, B. Tick, C. Mite, D. Mosquito
A: Flea
Answer: A: Flea 
Explanation: <p> Endemic typhus is transmitted by flea. Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:299. <\p>