The most popular form of mass entertainment following world war i was

The right answer is: Movies became the nation’s chief form of mass entertainment. In 1896, a New York audience viewed the first moving-picture show. By 1908, there were nearly ten thousand movie theaters scattered across the nation; by 1924, there were twenty thousand theaters showing seven hundred new films a year. By the mid-1930s, every city and most small towns had movie theaters. Movie attendance during the 1920s averaged 80 million people a week. Americans spent ten times as much on movies as they did on tickets to baseball and football games

the answer is migration

the answer is d. tariffs were raised by america's trading partners after the smoot-hawley tariff act, decreasing exports, and declining job rates.