This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Proteins and Amino Acids, Subject name: Biochemistry
[{'content': 'Oxaloacetate is formed from: \nSelect and explain. \nA. Proline, B. Histidine and arginine, C. Glutamate and glutamine, D. Aspartate and asparagine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D. Aspartate and asparagine', 'role': 'assistant'}]