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
Elimination after 3 half lives in first order kinetics is: 
Select and explain. 
A. 12.50%, B. 75%, C. 87.50%, D. 94%
C: 87.50%
Answer: C: 87.50% 
Explanation: None