This was a big deal because it introduced the concepts of limited government, rule of law, and due process. It also helped create the nation's Parliament (kind of like Congress in the U.S.). The Magna Carta was a government document that limited the power of the king of England and protected the rights of the nobility.
Cars became popular in 20th century. I think this is the right answer.
The answer to this should be: A sizable middle class has developed.
With a middle class they can create a better governance; The Middle Class has a strong interest in promoting foresighted policies and making government work well because their economic fate is more closely tied to the quality of government than that of the wealthy.
Hope this helped :)
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I'm sorry, what text? Could you post the passage please?