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
Which of the following is not transmitted by Arthropod- 
Select and explain. 
A. Q fever, B. Rickettsial pox, C. Rocky mountain spotted fever, D. Relapsing feve
A: Q fever
Answer: A: Q fever 
Explanation: None