Which of the Following Is the Most Accurate Description of the US

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) Americans 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.