I would say that the US stop seclusion of Japan. so the answer is United states
Answer:
D. African Americans were not discriminated against politically.
Explanation:
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Three reasons
1- It is easier to transport
2- Get to your destination faster
3- Little chance of getting hurt
Mass production techniques reduced manufacturing costs and therefore reduced the prices for consumers. I would say C, since men worked in burgeoning industries such as automobile manufacturing. So they could make money to buy goods.