This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'Felon is: \nSelect and explain. \nA. Pulp space infection, B. Herpetic lesion of hand, C. Fungal infection of hand, D. Marjolin’s ulcer involving hand', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Felon (Pulp space infection)\na. Pus trapped between fibrous septae, which bind specialized fingertip skin to underlying bone with infection of underlying bone also.\nb. Severe pain in finger pulp occurs.\nc. An abscess drained through oblique in vision.', 'role': 'assistant'}]