This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and paranasal sinuses, Subject name: ENT
Samter's triad include sensitivity to which drug? 
Select and explain. 
A. Ibuprofen, B. Indomethacin, C. Aspirin, D. Ketorolac
C: Aspirin
Answer: C: Aspirin 
Explanation: Samster's triad : Nasal polyp Bronchial asthma Asprin sensitivity Ref: Dhingra 7e pg 510.