During the early 1800s, which factor contributed the most to the start of the Industrial Revolution in the United States? A. an abundance of natural resources

B. the availability of electricity

C. a restriction on European immigration

D. the end of the slave labor system

That would be A, and abundance of Natural resources. The United States was still pretty new when the industrial revolution started, so they had a huge amount of natural resources at their disposal, unlike Britain that had been there for way way longer. Hope this helps! I’m new on here.