Answer: A 
J35.03 is correct because it is used to specify chronic tonsillitis and adenoiditis characterized by soreness in the throat along with pain in the ear and difficulty in swallowing. 
Option B is not correct because J35.2 is used to code for hypertrophy of adenoids which is not the diagnosis here. 
Option C is not correct because J97.131 is used to code for hypertrophy of tonsils, which is not the diagnosis here. 
Option D is not correct because J35.3 is used to code for hypertrophy of tonsils with hypertrophy of adenoids which is not the diagnosis here.