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."
Scarcity is the fundamental problem facing all societies. It is the condition that results from society not having enough resources to produce all the things that people would like to have.