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: Surgery
Tonsillectomy is recommended if number of acute infections in a year exceed: 
Select and explain. 
A. 3, B. 4, C. 5, D. 6
A: 3
Answer: A: 3 
Explanation: Tonsillectomy and adenoidectomy are indicated for chronic or recurrent acute infection and for obstructive hyperophy. The American Academy of Otolaryngology-Head and Neck Surgery Clinical Indicators Compendium suggests tonsillectomy after three or more infections per year despite adequate medical therapy. Some feel that tonsillectomy is indicated in children who miss 2 or more weeks of school annually secondary to tonsil infections. Ref: Schwaz's principle of surgery 9th edition, chapter 18.