New technology was developed as a result of the industrial revolution and had a large impact both on industries in cities as well as on the nature of farming in the united states. which of the following best explains how the mechanization of farming changed the united states economy? a. the u. s began to specialize in only a few types of crops. b. the u. s. started producing more manufactured goods. c. the u. s. economy began to rely entirely on agriculture. d. the u. s. became a leading producer of agricultural goods.