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: ENT
All are the cause of Atrophic Rhinitis except 
Select and explain. 
A. Klebsiella ozanae, B. Progesteron deficiency, C. Vitamin A deficiency, D. Auto - Immune
B: Progesteron deficiency
Answer: B: Progesteron deficiency 
Explanation: None