This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autacoids, Subject name: Pharmacology
Ibuprofen acts on: 
Select and explain. 
A. Lipoxygenase pathway, B. Cyclooxygenase pathway, C. Kinin system, D. Serotonin system
B: Cyclooxygenase pathway
Answer: B: Cyclooxygenase pathway 
Explanation: Ibuprofen is an NSAID - So acts on COX pathway ESSENTIALS OF MEDICAL PHARMACOLOGY;7TH EDITION;KD TRIPATHI;PAGE NO 193