What was the goal of Martin Luther King, Jr.?

The goal of Martin Luther King, Jr. was primarily focused on achieving equality for all Americans, particularly for African Americans facing systemic racism and discrimination in the United States. Through his leadership in the civil rights movement, King advocated for equal rights, promoting nonviolent resistance to challenge segregation and unjust laws. He envisioned a society where individuals would be judged not by the color of their skin but by the content of their character, which underscores the essence of his message for equality.

Other options, while significant in their own right, do not align as closely with King's central mission. Economic prosperity, while important, was not the primary focus of his activism. His stance on the Vietnam War was more about advocating for social justice rather than being solely focused on ending the conflict itself. The restoration of Native American lands is a critical social issue, but it was not a central theme in King's work or his advocacy. Thus, the answer reflects the core ambition of King's advocacy as a leader in the fight for civil rights and social justice.