Read the excerpt from dr. martin luther king jr.’s "i have a dream" speech.

we can never be satisfied as long as the negro is the victim of the unspeakable horrors of police brutality. we can never be satisfied as long as our bodies, heavy with the fatigue of travel, cannot gain lodging in the motels of the highways and the hotels of the cities. we cannot be satisfied as long as the negro's basic mobility is from a smaller ghetto to a larger one. we can never be satisfied as long as our children are stripped of their adulthood and robbed of their dignity by signs stating "for whites only." we cannot be satisfied as long as a negro in mississippi cannot vote and a negro in new york believes he has nothing for which to vote. no, no, we are not satisfied, and we will not be satisfied until "justice rolls down like waters and righteousness like a mighty stream.”

which topic sentence is supported by examples found in this paragraph?

dr. king believes that people in new york have no reason to vote.
dr. king believes that his people will never be satisfied.
dr. king uses repetition to encourage others to demand equality.
dr. king uses technical language to challenge his audience.