Final answer:
King supports his claim with logical appeals (logos) by stating it as a historical fact.
Step-by-step explanation:
Based on the information provided, King supports his claim with logical appeals (logos). Logos is an appeal to logic and relies on strong reasoning supported by facts and statistics. In the first paragraph, King argues that privileged groups seldom give up their privileges voluntarily, and he supports this claim by stating it as a historical fact. This is an example of a logical appeal because it relies on historical evidence to support the claim.