This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: mycology, Subject name: Microbiology
[{'content': 'True about mycetoma is \nSelect and explain. \nA. Commonly occurs in hands, B. Commonly erodes bone, C. Drains through lymphatics, D. Antibiotics has no role', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Feet and lower legs are more commonly affected sites. Bone involvement may lead to osteomyelitis. Ref: Textbook of Microbiology, Ananthanarayan and Paniker; 9th edition', 'role': 'assistant'}]