The best answer to how the spread of information exposed Americans to new ideas is:
b. Working-class Americans were able to see images and read the words of people far beyond their homes and outside their lived experience.
This option highlights how advancements in communication, such as newspapers, magazines, and eventually radio and television, allowed individuals—particularly those in the working class—to access new ideas, perspectives, and experiences from people and places that they might never encounter in their everyday lives. This exposure played a significant role in broadening their understanding of the world and influencing societal change.