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
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: 
Select and explain. 
A. Chloramphenicol, B. Gentamicin, C. Tetracycline, D. Erythromycin
C: Tetracycline
Answer: C: Tetracycline 
Explanation: None