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': 'Which of these drugs DO NOT decrease angiotensin II activity: \nSelect and explain. \nA. Enalapril, B. Valsartan, C. Nesiritide, D. Omapatrilat', 'role': 'user'}, {'content': 'Answer: C \nExplanation: ACE inhibitors and ATi antagonists decrease angiotensin II activity.\nOmapatrilat is a vasopeptidase inhibitor that acts by inhibiting two enzymes, ACE and NEP. As it inhibits ACE, it may also decrease angiotensin II activity.\nNesiritide is a recombinant BNP and has no effect on angiotensin II activity.', 'role': 'assistant'}]