Lech Walesa led the Solidarity movement in Poland. Option C is correct.
Lech Walesa is a Polish retired politician and labour activist. Lech Walesa co-founded and headed Solidarity, the Soviet bloc's first independent trade union, won the Nobel Peace Prize in 1983, and served as President of Poland from 1990 to 1995. While working at the Lenin Shipyard, hebecame a trade-union activist, for which he was persecuted by the Communist authorities, placed under surveillance, fired in 1976, and arrested several times.