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
Otospongiosis is - 
Select and explain. 
A. Autosomal dominant, B. Autosomal recessive, C. X-linked dominant, D. X-linked recessive
A: Autosomal dominant
Answer: A: Autosomal dominant 
Explanation: Otosclerosis (otospongiosis) is abnormal bone deposition in the middle ear about the rim of the oval window into which the footplate of stapes fit.
This results in conductive deafness
In most instances it is familial, following autosomal dominant transmission with variable penetrance.