According to Washington what type of evidence does his invitation to serve the board represent? What does his inclusion tell him about race relations in the United States at the time

Read this excerpt from the grapes of wrath: snub-nosed monsters, raising the dust and sticking theirsnouts into it, straight down the country, across thecountry through fences, through dooryards, and in and outof gullies in straight lineswhich best describes the tone in this passage