This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacterial infections, Subject name: Dental
[{'content': 'What is known to cause pedal Botryomycosis \nSelect and explain. \nA. Actinomyces somaliensis, B. Nocardia asteroides, C. Staphylococcus aureus, D. Candida glabrata', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Staphylococcal skin infections Botryomycosis :- * Deep granulomatous and suppurative infection most frequently caused by S. aureus. * May extend to skeletal muscle and bone; affects all ages; a/w |T-cell counts and other defects in cellular immunity. * 70% have skin-limited disease (rarely visceral in severely immunosuppressed patients; lung most common); p/w deep, ulcerative plaques/nodules with multiple draining sinuses that drain yellow granules. Histology:- large granules w/ basophilic center (nonfilamentous bacteria) and eosinophilic/hyaline periphery (Splendore-Hoeppli phenomenon; comprised of IgG and C3 deposits), granules are surrounded by abscess and granulomatous inflammation; granules are PAS+, Giemsa+, and Gram(+) Treatment: - Surgical debridement + antistaphylococcal antibiotics. Ref:- Review of Dermatology by Alikhan; pg num:- 290', 'role': 'assistant'}]