Answer is c
i just went through the test
After the civil war, railroads connected the country on a national scale, boosting the economy and leading to mass production, mass consumption, and encouraging entrepreneurs.
Answer:
A single producer.
Explanation:
A good example of this would Monsanto and the control over pesticides, insecticides, etc.
Native Americans had no immunity to European illnesses and their population was devastated by the (sometimes deliberate) introduction of diseases like smallpox. Over time, most surviving tribes were forcibly relocated from their traditional lands to make way for expanding European settlements.
So no
