<prompt> Youngs surgery is done for the treatment of -Atrophic rhinitisRhinoscleromaDeviated nasal septumChoanal atresia  <response>: Ans. is a i.e., Atrophic rhinitisSurgical treatment of Atrophic rhinitisYoungs operationModified Youngs operationNarrowing of the nasal cavity by Lautenslagers operation -Lautenslagers operation 