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 the following is a feature of nonselective Cox inhibitor but not of selective Cox 2 inhibitor? 
Select and explain. 
A. Analgesic effect, B. Antiplatelet aggregatory, C. Renal salt/ water retention, D. Prolongation of labour
B: Antiplatelet aggregatory
Answer: B: Antiplatelet aggregatory 
Explanation: Ans. is'b'i.e., Antiplatelet aggregatory(Ref: KDT 7th /e p. 194)