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': 'Which of the following is present in higher concentrations in mother than in the fetus \nSelect and explain. \nA. Zinc, B. Iron, C. Ascorbic acid, D. HPL', 'role': 'user'}, {'content': 'Answer: D \nExplanation: HPL = Human placental lactogen is abundant in mother, but not the fetus. It promotes utilization of free fatty acids by maternal tissues and blocks peripheral uptake and use of glucose by maternal tissues.', 'role': 'assistant'}]