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: Unknown
[{'content': 'Which of the following can cause Teratogenecity. \nSelect and explain. \nA. Vit.C, B. Vit.E, C. Vit.A, D. Vit.D', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' Vitamin A * The teratogenic effects of Vitamin A have been dealt before.", 'role': 'assistant'}]