A 15-year-old boy presents with fever, sore throat, tender cervical lymphadenopathy and exudative tonsils. He has no cough. His Centor score is 4. According to Canadian primary care guidelines, which management is appropriate?ANo investigation or treatment; it is likely viralBThroat swab and treat only if positive for group A streptococcusCEmpiric penicillin or amoxicillin for presumed streptococcal pharyngitisDRoutine use of macrolides in all casesEImmediate tonsillectomyCheck my answer