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
Which of these drugs DO NOT decrease angiotensin II activity: 
Select and explain. 
A. Enalapril, B. Valsartan, C. Nesiritide, D. Omapatrilat
C: Nesiritide
Answer: C: Nesiritide 
Explanation: ACE inhibitors and ATi antagonists decrease angiotensin II activity.
Omapatrilat is a vasopeptidase inhibitor that acts by inhibiting two enzymes, ACE and NEP. As it inhibits ACE, it may also decrease angiotensin II activity.
Nesiritide is a recombinant BNP and has no effect on angiotensin II activity.