The correct answer is B. Human Development Index. 
The Human Development Index (HDI) takes into consideration several different factors in order to categorize nations as to levels of development. Some of the factors they use are: 
A) A country's Gross National Income (GNI)
B) Life expectancy 
C) Education of citizens (i.e. college degree, years of schooling for average citizen). 
        
             
        
        
        
Hello there @Adamaris80
Some of the tactics that the police use to stop street racing are
Unmarked cars (cars that have their lights inside the car)
Street surveillance (mostly on long, straight and empty streets)
Checkpoints 
and many more
Lemme know if there is anything else I can help with 
I hope I helped 
X8lue83rryX
 
        
                    
             
        
        
        
When Germany experienced inflation, especially after World War I, prices for goods "<span>d. increased," dramatically, since this was in fact "hyper inflation," which is very severe. </span>