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: Medicine
Gout is a disorder of - 
Select and explain. 
A. Purine metabolism, B. Pyrimidine metabolism, C. Ketone metabolism, D. Protein metabolism
A: Purine metabolism
Answer: A: Purine metabolism 
Explanation: None