How did Martin Luther King change the world by his speech

He envisioned a world where his children would not be judged by the color of their skin, but by the content of their character. In a tumultuous time, Martin Luther King Jr. led a civil rights movement that focused on nonviolent protest. He changed the lives of all African Americans in his time and subsequent decades.

the price of our current war is high; it costs money and it costs lives.

but it does not cost our pride. it does not cost the guilt that would arise from knowing that we did nothing to intervene while our neighboring nations fell to despotic leaders.

it does not cost the terror of knowing that our allies are unstable. it does not cost the fear that we, too, will be next to fall.

which sentence most accurately explains why the speaker's use of the parallel structure is effective in this passage?

a. it underscores that disagreement will not be tolerated and will be dealt with swiftly.

b. it makes the speaker seem like a decisive and capable leader.

c. it emphasizes reasons to fight and inspires listeners to aid the war effort.

d. it establishes the speaker's credibility by acknowledging the difficulties of war.

is it rising action, falling action, climax, or resolution? need answer also