What are three ways Martin Luther King Jr. Changed the world for the better?

He led a civil rights movement that focused on nonviolent protest. Martin Luther King's vision of equality and civil disobedience changed the world for his children and the children of all oppressed people. He changed the lives of African Americans in his time and subsequent decades.

His strong belief in nonviolent protest helped set the tone of the movement. Boycotts, protests, and marches were eventually effective, and much legislation was passed against racial discrimination.

He played a pivotal role in advancing civil rights in America and has won a Nobel Peace Prize for his efforts to fight racial inequality in a non-violent matter.

nations must cooperate to bring about and maintain world peace.

nations must not wage wars or commit war crimes in a desire to control other nations.

i think i know which options you have but if these aren't options let me know