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: Radiology
[{'content': 'Tufting of distal phalanx is characteristically seen in \nSelect and explain. \nA. Gout, B. Psoriatic ahropathy, C. Hypoparathyroidism, D. Hyperparathyroidism', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Psoariatic ahropathy', 'role': 'assistant'}]