The total amount of a product available in a market at a given price is called the supply. 
There are a lot of factors that affect supply such as the price of the product, price of similar goods in the market, price of inputs, and the number of suppliers. 
 
        
                    
             
        
        
        
Explanation:
separate themselves from those who are like them 
 
        
             
        
        
        
Answer:Sectionalism was the major cause of the United States Civil War because it was integral to creating the Southern social life as well as shaping its political tendencies, not the issue of slavery, which only affected a very small percent of southerners.
Explanation:During the build up to the Civil War, sectionalism began to develop in the United States. Sectionalism is the belief that a person's region was superior to other sections of the country. ... The two sides of the debate over slavery were divided between the two main sections of the United States; the North and South.
Sectionalism was caused by the issue of states' rights to the slavery and personal treatment of slaves. Sectional strife was caused by the expansion of the peculiar institution into western territories. Initially most northerners ignored the issue of slavery as it had a minimal role in their everyday life.
 
        
             
        
        
        
This pictures shows all the events
 
        
        
        
I believe the answer is: C. development of medieval guild towns and cities
A long with urbanisation, the centre of all economic activities were started to shifted into large cities with highly populated area. When this happen, Guild towns that established to excel at a certain economic sectors would started to established in order to gather as much talented members as possible.