what was most surprising about the outbreak of the chinese civil war?\nchiang kai - shek switched sides to…

what was most surprising about the outbreak of the chinese civil war?\nchiang kai - shek switched sides to launch an attack on the communist party.\nthe communist party leaders once had declared their opposition to war.\nthe nationalist party and the communist party formerly were aligned.\nthe nationalist party had much to lose and little to gain in a civil war.
Answer
Brief Explanations:
The Nationalist - Communist cooperation during the First United Front was well - known. The sudden outbreak of civil war was surprising as they had been aligned before. Chiang Kai - shek's betrayal was a part of the events but the prior alignment is a more fundamental surprise factor. The other options are either less central to the surprise of the civil war outbreak or inaccurate.
Answer:
The Nationalist Party and the Communist Party formerly were aligned.