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: Dental
[{'content': 'Corpus adiposum refers to: \nSelect and explain. \nA. Child reserve of energy., B. Child reserve of fat., C. Child reserve of protein, D. All of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]