On June 29, 1947, as the first president to address the National Association for the Advancement of Colored People (NAACP), Harry Truman pledges his support for upholding the civil rights of all Americans.
this was the 3 way that he had changed ;)
Communist infiltration in the entertainment industry was the first hearing of HUAC
The correct answer in this case is liberalism.
Socialism is the opposite as it entails (Among other things) the idea of fast changes, if need be with revolution. Neither does utilitarianism talk about social progress through reform.
Libertarians talk exactly about what the question is about; one of the main tennets of liberalism is that they prefer and would like to witness social change through reforms.
The create division between the country
I don’t know because I’m in middle school
