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
Rash is absent in ? 
Select and explain. 
A. Scrub typhus, B. Epidemic typhus, C. Q. fever, D. Endemic typhus
C: Q. fever
Answer: C: Q. fever 
Explanation: Ans. is 'c' i.e., Q. fever