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: Pharmacology
[{'content': 'Omeprazole act by inhibiting - \nSelect and explain. \nA. Nall+ATPase, B. NalCATPase, C. Calcium channels, D. 1-11K+ATPase', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., HICATPase", 'role': 'assistant'}]