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
β - Blocker with maximum half life 
Select and explain. 
A. Propanalol, B. Metaprolol, C. Bopindolol, D. Nadalol
D: Nadalol
Answer: D: Nadalol 
Explanation: Nadalol is a non selective water soluble β blocker with longest half life.
Esmolol metabolized by plasma esterase has the shortest half life.