After the alliance between them collapsed, how did the Communists avoid the suppression of the Nationalists?

a. They allied themselves with the invading Japanese Army.
b. They undertook a 6000-mile march to a remote area of the country.
c. They initiated a guerrilla war against the Nationalists.
d. They escaped to Taiwan and established an alternative government.
e. They disbanded and faded into the population.

b