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
True about mycetoma is 
Select and explain. 
A. Commonly occurs in hands, B. Commonly erodes bone, C. Drains through lymphatics, D. Antibiotics has no role
B: Commonly erodes bone
Answer: B: Commonly erodes bone 
Explanation: Feet and lower legs are more commonly affected sites. Bone involvement may lead to osteomyelitis. Ref: Textbook of Microbiology, Ananthanarayan and Paniker; 9th edition