<prompt> Most common site for the initiation of otosclerosis is:Footplate of stapesMargins of stapesFissula antefenestrum.Fissula post fenestram  <response>: Ans. C Fissula antefenestrum.Most common type of otosclerosisMost common site of otosclerosisMost common site for stapedial otosclerosisMost common site for cochlear otosclerosisStapedial otosclerosisFissula ante fenestram . just in front of oval windowFissula ante fenestram . just in front of oval windowRound window 