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 have high first pass metabolism except ? 
Select and explain. 
A. Lidocaine, B. Propranolol, C. Theophylline, D. Morphine
C: Theophylline
Answer: C: Theophylline 
Explanation: Ans. is 'c' i.e., Theophylline