Emilia Earhart is one person who made a difference<span />
<span>As more people move out of poverty and into the middle class, there is more discretionary income, which can be spent on entertainment. Mass entertainment is formed in response to the demands of the middle class, and then provides new industries which then create more jobs, moving more people into the middle class, to create more discretionary income. It's a nice circle</span>
B. because the work in one area and are specialized to do that work.
Answer:
first one is a b and c the others idk sorry
