During the Cold War, the concept of freedom for all Americans was hotly debated across the political spectrum within the United States. Which of the following events were part of this great debate about the hallmarks of American freedom?
a) Operation Wetback was passed and the crusade against immigrants intensified in the U.S.
b) The Rosenbergs are executed for trying to register African-Americans in the South.
c) Anticommunist groups successfully lobbied to remove books they saw as un-American from public libraries.
d) On the Senate floor, Senator Margaret Chase Smith delivered her "Declaration of Conscience" challenging the lack of effort by Americans to fix racial inequality.