This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and paranasal sinuses, Subject name: ENT
A predisposing factor for nasal myiasis is 
Select and explain. 
A. Allergic rhinitis, B. Vasomotor rhinitis, C. Atrophic rhinitis, D. Rhinitis medicamentosa
C: Atrophic rhinitis
Answer: C: Atrophic rhinitis 
Explanation: Predisposing factors for nasal myiasis (maggots in the nose)Poor hygieneAtrophic rhinitisSuppurative sinusitisComatose patientsUncontrolled diabetesMalignancy maxillaGranulomatous conditions- Leprosy, syphilis, Wegner&;sRef: Hazarika; 3rd ed; Pg 351