The correct answer is B) Holding nonviolent marches.
The civil rights movement was a social movement in the US that was focused on gaining legal, social, political, and economic equality for African American citizens. In order to change the current institutions, African American citizens held nonviolent marches to show their displeasure with laws that limited their rights. A perfect example of this would the March on Washington for Jobs and Freedom. This march lead by Martin Luther King Jr. resulted in the famous "I have a dream speech."
The League of Nations has its origins in the Fourteen Points speech of President Woodrow Wilson, part of a presentation given in January 1918 outlining of his ideas for peace after the carnage of World War I. Wilson envisioned an organization that was charged with resolving conflicts before they exploded into bloodshed and warfare.
