Sherman Antitrust Act of 1890 was the first major piece of legislation against monopolies. The goal was to keep things competitive. They were trying to keep prices from rising due to a company or group of companies purposely withholding stock or goods to create an artificially high demand for a product and causing the price to rise.
The Scramble for Africa was a competition between the European powers (Great Britain, France, Belgium and others) over colonies in Africa - the correct answer is "a competition for colonies". It happened between the end of 19th century and the beginning of 20th century.
There were two parties in China after World War 2: the Nationalists and the Communists. The Nationalists were led by Chiang Kai Shek, and the Communists were led by … Mao Ze Dong. The Communists defeated the Nationalists, and Chiang Kai Shek fled to Taiwan to set up a government there.