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: Microbiology
Which is not transmitted by arthropod - 
Select and explain. 
A. Rickettsia prowazekii, B. Coxiella burnetii, C. Rickettsia akari, D. Rickettsia rickettsii
B: Coxiella burnetii
Answer: B: Coxiella burnetii 
Explanation: None