Using the information provided, which country is most likely to have the highest standard of living?
- ABangladesh: birth rate 27, death rate 10, life expectancy 58, infant mortality rate 93
- BBhutan: birth rate 36, death rate 14, life expectancy 53, infant mortality rate 107
- CBotswana: birth rate 31, death rate 21, life expectancy 40, infant mortality rate 57
- DBrunei: birth rate 25, death rate 5, life expectancy 72, infant mortality rate 22