Question

in 1980, lech walesa led a workers strike in
hungary
poland
czechoslovakia
yugoslavia

Explanation:

Lech Walesa led the 1980 worker's strike at the Gdańsk Shipyard in Poland, which was a significant event in the history of the Solidarity movement. The other countries (Hungary, Czechoslovakia, Yugoslavia) did not have this specific strike led by Walesa.

Answer:

B. Poland