This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
Swimming pool granuloma is caused by 
Select and explain. 
A. Mycobacterium bovis, B. Mycobacterium ulcerans, C. Mycobacterium kansasii, D. Mycobacterium marinum
D: Mycobacterium marinum
Answer: D: Mycobacterium marinum 
Explanation: Mycobacterium marinum can cause cellulitis or granulomas on skin surfaces exposed to the water in aquariums or injured in swimming pools.