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: Social & Preventive Medicine
Human development index includes -a) Crude death rateb) Life expectancy at one yearc) Life expectancy at birthd) Adult literacy ratee) GDP 
Select and explain. 
A. ae, B. edb, C. cde, D. bd
C: cde
Answer: C: cde 
Explanation: None