During World War II, the Communists and Nationalists in China continued their civil war while forming a temporary alliance to fight against Japan. This situation involved cooperation to combat a common enemy, but their internal conflict remained unresolved. Therefore, the correct answer is A.
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During World War II, the Communists and Nationalists in China continued their civil war while also forming a temporary alliance to combat the Japanese invasion. This complex relationship was marked by their cooperation against a common enemy, while still maintaining their internal conflict. Therefore, the most accurate answer is that they continued fighting a civil war but also fought together in World War II. ;