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
The half life of I133 - 
Select and explain. 
A. 4 hours, B. 4 days, C. 6 days, D. 8 days
D: 8 days
Answer: D: 8 days 
Explanation: Ans. is 'd' i.e. 8 days