Businesses and industries in the 1920s most closely followed the buying demands of consumers.
The 1920s were the times of economic boom in America: the industries were advancing in the production of consumer goods, and people all over the U.S. was excited to buy. The invention of credit and the impressive use of advertisement propaganda led to the start of the era of consumerism. This is why businesses and industries was pointed towards the buyers.
Pretty sure it is "gold", you know with the California Gold Rush, and 49ers and all that. :)
D) I’m not to sure but it’s the best answer
Thomas Gibbons was allowed to operate his steamboats in New York. It was a case when a historic point choice in which the Supreme Court of the United States held that the ability to manage interstate trade, allowed to Congress by the Commerce Clause of the United States Constitution, enveloped the ability to direct route.