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
The chronic renal failure is most commonly associated with: 
Select and explain. 
A. Respiratory alkalosis, B. Metabolic acidosis, C. Hypoxia, D. Respiratory acidosis
B: Metabolic acidosis
Answer: B: Metabolic acidosis 
Explanation: None