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
All NSAIDs block cycloxygenase and 
Select and explain. 
A. Prostaglandin synthesis, B. Ectoglandin synthesis, C. Preglandin synthesis, D. Costaglandin synthesis
A: Prostaglandin synthesis
Answer: A: Prostaglandin synthesis 
Explanation: None