This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Scleroderma, Subject name: Medicine
[{'content': 'All are features of scleroderma except? \nSelect and explain. \nA. Decrease in tone of LES, B. Restrictive cardiomyopathy, C. Syndactyly, D. Halitosis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: * Syndactyly is a condition wherein two or more digits are fused together. Scleroderma has sclerodactyly characterized by pitting scars present in tips of fingers. * Scleroderma leads to fibrosis in LES leading to decrease in tone of LES and resultant GERD. * The progressive fibrosis can involve the hea leading to restrictive cardiomyopathy and development of kussmaul sign. * The fibrosis of minor salivary glands reduces saliva production. Since saliva has bactericidal activity the resultant reduction in saliva production leads to halitosis.', 'role': 'assistant'}]