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