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: Pharmacology
[{'content': 'An 8-year-old child presented with brownish discoloured and deformed anterior teeth. History of having received an antibiotic about 4 years earlier was obtained. Which antibiotic could be responsible for the condition: \nSelect and explain. \nA. Chloramphenicol, B. Gentamicin, C. Tetracycline, D. Erythromycin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]