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: Medicine
[{'content': "All the following are features of Scleroderma except \nSelect and explain. \nA. Dysphagia, B. Raynaud's phenomenon, C. Skin contracture, D. Calcification in all the long bones", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Answer is D (Calcification in Long bones) : Scleroderma is associated with resorption of long bones and not their calcification. Scleroderma (Systemic sclerosis) is a multisystemic disorder of unknown cause. It is characterized by fibrosis of the skin, blood vessels and visceral organs.', 'role': 'assistant'}]