Answer:
The correct answer is - Both sides agreed to stop fighting each other until World War II ended.
The communist and nationalist of China were constantly fighting with each other in able to gain power in the country. Than the Japanese invaded, and they decided to not fight each other, but instead fight the Japanese for the good of the country. Even though they were both fighting against the Japanese, they were actually fighting separately, and were not really collaborating between each other. Once the World War II ended, they returned to fight between themselves.
Step-by-step explanation: