Answer:
The use of money better than a barter system because of the following reasons: A person holding money can easily exchange it for any commodity or service that he or she might want. Thus everyone prefers to receive payments in money and then exchange the money for things that they want.
Andrew Carnegie.
Carnegie was born in 1835 in Dunfermline, Scotland. His family moved to America in 1848. He established the Carnegie Steel Company in Pittsburgh, Pennsylvania, which he later sold (and it became known as U.S. Steel). In later life, he became known for his philanthropy, giving of his wealth to various causes. The famous Carnegie Hall in New York City is just one example of something the wealth of Andrew Carnegie built for the benefit of others.
The correct answer is A. To guarantee American commerce with China. The us sent troops to participate in the multinational force that fought the Boxer Rebellion in 1900 to support U.S. trade goals by helping to preserve China as a nation. The Open Door Policy is a term in foreign affairs initially used for the United States policy in the late 19th century and the early 20th century that allowed for a system of trade in China open to all countries. Recently it is used to open up China to foreign businesses that wanted to invest in the country.
