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
Which of the following ricketsial diseases is transmitted by tick - 
Select and explain. 
A. Murine typhus, B. Rocky mountain spotted fever, C. Q-fever, D. Endemic typhus
B: Rocky mountain spotted fever
Answer: B: Rocky mountain spotted fever 
Explanation: Rickettsial disease Insect vector Murine typhus (endemic typhus) - Flea Q fever Nil Ref: PARK&;S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 23rd edition pg 299