This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Musculoskeletal Radiology, Subject name: Radiology
[{'content': 'Rat Bite Erosions are seen in? \nSelect and explain. \nA. Psoriasis, B. Gouty Ahritis, C. Osteoahritis, D. Ankylosing Spondylitis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: *Rate Bite Erosions with over hanging edges(Maels sign) is feature of Gouty Ahritis Radiographs in Gout Marginal erosion with overhanging edge "Rat bite"', 'role': 'assistant'}]