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
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: Maggots are seen to infest nose, nasopharynx, and paranasal sinuses causing extensive destruction flies of genus Chrysemys, are attracted by the foul smelling discharge emanating from cases of atrophic rhinitis, syphilis, leprosy or infected wounds and lay eggs. Seen as swelling of the nose and puffy eyelids with serosanguinous nasal discharge. Ref - PL DHINGRA diseases of ear nose and throat, 6th edition, page no 163