The political unrest in eastern europe that had surfaced in 1968 peaked again in 1980 with the rise of a politicized labor union in poland. organized strikes that threatened to bring the government down.

Solidarity

Explanation:

The Solidarity was a labor union that was founded in 1980. Solidarity used a civil resistance method to defend workers rights and social change. It was the first trade union in Poland that was not controlled by the communist Party. The government was not pleased with it and aimed to destroy it by imposing martial law, which increased oppression.

well i'm late but i think its: b, c, and e