How was did the us policy of containment work in china during the chinese civil war after ww2? a. it was ineffective as communist forces led by mao zedong won and introduced a communist government b. it was effective at preventing communism in china, but it also ended communism in north korea c. it was ineffective in china and led to a regional conflict throughout the entire continent of asia d. it was effective at limiting the rise of communism as china became a democratic nation