How did Pope John Paul II work to end the Cold War?

A. He met with Gorbachev and Russian Orthodox Church leaders to discuss human rights.
B. He helped negotiate an agreement between Solidarity and Poland's communist leaders.
C. He hosted a conference about political reform with Soviet and East European leaders.
D. He criticized Poland’s communist government and met with the leaders of Solidarity.

D. He criticized Poland’s communist government and met with the leaders of Solidarity.