He taught them discipline and military strategies used by other armies in order to help them become more professional.
        
             
        
        
        
A Historical Timeline of Afghanistan. The land that is now Afghanistan has a long history of domination by foreign conquerors and strife among internally warring factions. ... Mahmud of Ghazni, an 11th century conqueror who created an empire from Iran to India, is considered the greatest of Afghanistan's conquerors.
 
        
                    
             
        
        
        
The answer is C. Hope that helped!
        
             
        
        
        
The answer might be a. depending on the place