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: Physiology
True is all except about Acid-Base disorder 
Select and explain. 
A. pH determined by Pco2 and HCO3, B. Respiratory acidosis is compensated by HCO3, C. Metabolic acidosis is compensated by Pco2, D. Buffering may be intra & extra cellular
B: Respiratory acidosis is compensated by HCO3
Answer: B: Respiratory acidosis is compensated by HCO3 
Explanation: B i.e. Respiratory acidosis is compensated by HCO3