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: Pathology
[{'content': 'Otospongiosis is - \nSelect and explain. \nA. Autosomal dominant, B. Autosomal recessive, C. X-linked dominant, D. X-linked recessive', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Otosclerosis (otospongiosis) is abnormal bone deposition in the middle ear about the rim of the oval window into which the footplate of stapes fit.\nThis results in conductive deafness\nIn most instances it is familial, following autosomal dominant transmission with variable penetrance.', 'role': 'assistant'}]