<span>The correct answer is B. People's acceptance of it for exchange. It used to be based on gold but it changed to being what is called a fiat currency. That means that there's no physical commodity that backs its value, but rather its value is backed by supply and demand, by banks and the economy, by people and by the stock market. Many other countries still use gold however to measure the value.</span>
It happened in the 1800’s it allowed a lot more people to get paid more from their jobs resulting in a higher standard of living. This is where unions came in the picture, they wanted 8 hour work days and no child labor. The gilded age is known as a prosperous time for the nation but the government was very corrupt. There were corrupt industrialists, bankers and politicians who stole and benefited from the working class.
*The trans continental railroad made more people move west and created “robber barons”
*Since the government was corrupt muckrakers became a thing, the muckrakers exposed government corruption and such
This question goes a lot deeper, so if you want to know more just ask in the comments
If there was a road built to connect with a larger trade route, a southeastern African village would likely experience young members of the community adopting new nontraditional beliefs and opinions.