Which of the following was not a factor that contributed to the growth of factories in the united states during the industrial revolution?
a.
technology
b.
an increase in the number of farmers providing food
c.
improved energy sources
d.
innovations in production

The main factors that led to the rise of industrialization in the U.S. in the late 1800s were: new technologies that make the production processes, the transport of the materials but also the communication easier.
So, A.technology, C. improved energy sources and D.innovations in production all contributed to the growth of factories in the United States during the Industrial Revolution.  The increase in the number of farmers providing food (C) was not a factor that contributed to the Industrial Revolution.