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 about gastric acid secretion: 
Select and explain. 
A. Secretion ,l,ses with secretin, B. H2 blockers prevent release, C. Total acid output indicates parietal cell mass activity, D. All
D: All
Answer: D: All 
Explanation: A i.e. Secretion decreases with secretin B i.e., H2 blocker prevents relapse C i.e., Total acid output indicates parietal cell mass activity