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: Pediatrics
[{'content': 'The antibiotic of choice of pertussis is – \nSelect and explain. \nA. Ampicillin, B. Gentamicin, C. Erythromycin, D. Penicillin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Treatment of pertussis\n\nDOC → Macrolides (Erythromycin, Azithromycin, Clarithromycin)\nAlternative → Cotrimoxazole', 'role': 'assistant'}]