This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
Swimming pool granuloma is caused by - 
Select and explain. 
A. M fortuitum, B. M kansasi, C. M marinum, D. M leprosy
C: M marinum
Answer: C: M marinum 
Explanation: Ans. is 'c' i.e., M. Marinum * 'Fish tank granuloma', also called 'swimming pool granuloma', is caused by M. marinum.