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 the following is a feature of nonselective Cox inhibitor but not of selective Cox 2 inhibitor? \nSelect and explain. \nA. Analgesic effect, B. Antiplatelet aggregatory, C. Renal salt/ water retention, D. Prolongation of labour', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is'b'i.e., Antiplatelet aggregatory(Ref: KDT 7th /e p. 194)", 'role': 'assistant'}]