This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Rhinitis, Subject name: ENT
All are implicated in aetiology of atrophic rhinitis except: 
Select and explain. 
A. Surgical excessive tissue destruction, B. Granulomatous conditions, C. DNS, D. Strong hereditary factors
C: DNS
Answer: C: DNS 
Explanation: (c) DNS(Ref. Cummings, 6th ed., 695)In DNS there occurs physiologic hypertrophy of the nasal turbinates on the opposite side of deviation.