How did supporters of the US justify its imperialism and actions in the South Pacific during the the twentieth century? A)They argued that the United States has a duty to spread its political, economic, and cultural beliefs and institutions to other nations. B)They argued that it is up to the United States to act as the "policeman" of the Western Hemisphere in the interests of global security. C)They argued that in order to protect its economic interests, the United States must compete with European nations for global influence. D)They argued that nations must be allowed the opportunity to realize their potential without foreign intervention.

A)They argued that the United States has a duty to spread its political, economic, and cultural beliefs and institutions to other nations.

Explanation:

The United States justifies its imperialism and actions in the South Pacific during the twentieth century by arguing "that the United States must spread its political, economic, and cultural beliefs and institutions to other nations."

This view is generally referred to in the United States as the White Man's Burden and it is was echoed by the United States prominent men such as Senator Alfred Beveridge, Rudyard Kipling, and Minister Josiah Strong.

this isn't a question and if you're going to list things be kind and use commas.

in 1989, tiananmen square in beijing was the site of china’s main industries. china’s government headquarters. -pro-democracy demonstrations. (second choice)