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': 'Which of the following is not true regarding tetracycline - \nSelect and explain. \nA. It is not teratogenic, B. It can cause tooth discoloration, C. It can result in superinfection, D. It can lead to pseudomembranous colitis.', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., It is not teratogenic o Tetracycline is teratogenic - causes discoloration and defects of teeth and altered bone growth of the fetus. o Tetracycline can cause superinfection (including pseudomembranous colitis).", 'role': 'assistant'}]