which of the following helps explain the outbreak of the Chinese Civil War?

1. The great leap forward.
2. Chiang Kai-shek’s purge of communist in 1927
3. The founding of the peoples Republic of China.
4. the long-standing tradition of Confucianism in china

2. Chiang Kai-shek’s purge of communists in 1927

This event led to a significant split between the Chinese Nationalist Party (led by Chiang Kai-shek) and the Chinese Communist Party, eventually leading to the outbreak of the Chinese Civil War.