Explanation:
the Middle Ages or Medieval Period lasted from the 5th to the late 15th century. It began with the fall of the Western Roman Empire and merged into the Renaissance and the Age of Discovery. The Middle Ages is the middle period of the three traditional divisions of Western history: classical antiquity, the medieval period, and the modern period. The medieval period is itself subdivided into the Early, High, and Late Middle Ages.
 
        
             
        
        
        
A. It doubled the size of the country.
 
        
                    
             
        
        
        
Answer:
The right answer is "It was expensive." 
Explanation:
Human exploration of unknown lands and environment actually dates back to ancient times. But in a modern sense, when we speak about European early exploration, we rather speak about the sea voyages by the Portuguese, the Dutch, and the Spanish in order to find new routes to Asia, starting in the 15th century. Maritime trips were expensive and uncertain;  the main goals of those expeditions were commercial. 
 
        
             
        
        
        
I think it was a egyptain prime
        
                    
             
        
        
        
Positive: Factories had an assembly line and many different people had different tasks, and it made producing a lot easier and faster.
Negative: Working in factories was not something people wanted to do, because it was unsafe and unhealthy. 
Hope this helps :)