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 ratio of the median lethal dose of the median effective dose is the 
Select and explain. 
A. Morbidity index, B. Moratality index, C. Anesthetic ratio, D. Therapeutic index
D: Therapeutic index
Answer: D: Therapeutic index 
Explanation: None