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: Gynaecology & Obstetrics
[{'content': 'All are the causes of intrauterine growth retardation except : \nSelect and explain. \nA. Anemia, B. Pregnancy induced hypeension, C. Maternal hea disease, D. None', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is None', 'role': 'assistant'}]