B. Ended communist rule and elected a democratic government.
The labor union led by Lech Walesa was known as Solidarność ("Solidarity"). It was the first trade union in a communist country of the Warsaw Pact that was not controlled by the communist party. Founded in 1980, the union became a large social movement and is credited for helping to bring down communism in Poland. In 1990, Walesa was elected as president of Poland.
