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: ENT
[{'content': 'Otospongiosis is inherited as: \nSelect and explain. \nA. Autosomal dominant, B. Autosomal recessive, C. X-linked dominant, D. X-linked recessive', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The exact etiology of otosclerosis is not known. In otosclerosis family history/heredity plays an impoant role. About 50% of patients of otosclerosis have a positive family history. It is an automosal dominant condition Shows incomplete penetrance and variable expression', 'role': 'assistant'}]