Which of the following is the most accurate description of the US between 1880 and 1920? a. The United States became the leading manufacturer in the world in terms of total production and output per worker. b. The quality of manufactured goods dropped c. American families bought fewer finished products, and instead saved money by increasingly buying materials and building things at home. d. No advertising was used because TV and radio had not yet been invented.

a. The United States became the leading manufacturer in the world in terms of total production and output per worker.

Explanation:

This era is characterized by prosperity and expansion. The country became a rich, fully-indutrialized nation. American businesses took advantage of new sources of energy and new forms of labor organization, there were huge leaps in productivity. Soon the domestic markets were not enough. Expansion toward Latin American and other markets ensued.

the map that was shown mostly had eastern asia highlighted. the answer would mostly likely be "the spread of communism into eastern asia set the stage for the korean war."

hopefully this .