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: Pathology
Patient reports with discolored teeth bearing brown
stains. The teeth glow fluorescent in UV Light. The most likely diagnosis is: 
Select and explain. 
A. Porphyria, B. Amelogenesis imperfecta, C. Hutchinson's teeth, D. Tetracycline staining of teeth
D: Tetracycline staining of teeth
Answer: D: Tetracycline staining of teeth 
Explanation: None