What events in China led some Americans to bemoan that the United States "lost China"?

A. The collapse of Chiang Kai-shek’s National party at the hands of mao Zedong Communist party and soviet recognition of Mao’s government

B. The collapse of both Mao Zedong’s Communist party and Chiang Kai-shek’s Nationalist party at the hands of the Soviets, who installed their own leader

C. The collapse of both Mao Zedong’s Communist party and Chiang Kai-shek’s Nationalist party at the hands of the Japanese, who installed their own leader

D. The collapse of Mao Zedong’s Communist party at the hands of Chiang Kai-shek’s Nationalist party and Soviet recognition of Chiang Kai-shek’s government

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

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