Because so many people thought of black people(African Americans) as of being just slaves still and thought that we should not be treated like everyone else such as White people should get treated. Some White people lived in urban areas and fidnt like that African Americans should live in that area or even stable homes. White people already thought that African Americans shouldnt have any rights.
Hope this helps
I don’t know what your asking I’m the question
B because steel can be very popular in some countries and businesses people who would want them can buy it. With the plentiful of people, businesses can thrive causing more industries to pick up what others are doing. In a result other industries will copy them and have more big companies.