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
Oxaloacetate is formed from: 
Select and explain. 
A. Proline, B. Histidine and arginine, C. Glutamate and glutamine, D. Aspartate and asparagine
D: Aspartate and asparagine
Answer: D: Aspartate and asparagine 
Explanation: Ans. D. Aspartate and asparagine