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: Biochemistry
What is the end product of catabolism of pyrimidine? 
Select and explain. 
A. NH3, B. CO2 & H2O, C. Both, D. None
B: CO2 & H2O
Answer: B: CO2 & H2O 
Explanation: The end products of pyrimidine catabolism is CO2 and H2O.