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
Both OX 2 and OX 19 are seen as positive test in case of: 
Select and explain. 
A. Scrub typhus, B. RMSF(Rocky mountain spotted fever), C. Epidemic typhus, D. Scrub typhus
B: RMSF(Rocky mountain spotted fever)
Answer: B: RMSF(Rocky mountain spotted fever) 
Explanation: RMSF(Rocky mountain spotted fever)