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
Lynch Howah surgery is for: 
Select and explain. 
A. Nasal septal perforation, B. Sinonasal tumours, C. Acoustic neuroma, D. Otosclerosis
B: Sinonasal tumours
Answer: B: Sinonasal tumours 
Explanation: Frontal osteomas can be excised by Lynch Howah surgery