Answer:
A. Model T Ford
Explanation:
The Model T Ford was produced from 1908 to 1927. It was the first affordable automobile, due to the use of assembly line production instead of individual hand-crafted work. Because it was so affordable, it caused a major shift in Americans' living patterns in the 1910s. It allowed more Americans to get from one place to another quickly.
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The bubonic plaque changed the social structure of Europe by this:
Before, the nobles and aristocrats were the 'body' that ran almost everything political. However, after the bubonic plague, this was shifted towards the common people. So the common people basically got more rights.
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