Final answer:
The quote "The chief business of the American people is business" by Calvin Coolidge means that Americans are primarily focused on economic activities.
Step-by-step explanation:
The quote "The chief business of the American people is business" by Calvin Coolidge means that c) Americans are primarily focused on economic activities. Coolidge believed that the success of America relied on the success of its businesses and that economic prosperity was the top priority. He advocated for limited government intervention in business affairs and believed that the wealthy should be left to handle their own interests. This quote reflects Coolidge's pro-business ideology and his emphasis on economic growth.