Answer:
Andrew Carnegie wrote the gospel of wealth in 1889 in which he argued that wealthy men had a responsibility to use their wealth for the greater good of the society. He believed in laissez-faire economics rewarded those willing to take risks but with success comes great responsibility. <em>According to him Social Darwinism was not about the survival of fittest but about the fittest one of the society should help others to survive.</em>
Mao Zedong has a known profile for being the founder and the chairman of People's Republic of China. He is also known as Mao Tse-Tung. Whereas, Deng Xiaoping was also the leader of People's Republic of China, but started on the year 1978. Mao Zedong started on 1949. Between the two, the difference in their economic policies is that, Deng focused on limited capitalist reforms and Mao did not support any form of these. The answer for this is option C.
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Coastline can be used for fishing (I think that the coast could be used for trading overseas.)
Afghanistan became an independent state when Amanullah established an alliance and signed a treaty of friendship with the Soviet Union. Hope this helps if you have any questions please feel free to message me;)
4 presidents were killed, Abraham Lincoln, James A. Garfield, William McKinley, and John F. Kennedy.