I believe it’s D all of the above
b- decreased opportunities for entrepreneurs
The Industrial Revolution in the US increased opportunities for entrepreneurs. With new technology, there were more opportunities for people to create new businesses. In addition with new businesses being created there were connected, tangent businesses growing was well. For example, when the light bulb was invented it gave others the opportunity to create light fixtures, street lights, and film projectors.
For most of its early history, the United States played a small role in world affairs. But in the late 1800s, some of America's leaders called for the nation to join the ranks of the world's major powers. As a result, the United States began to acquire influence and territories outside its continental borders. The country was abandoning isolationism and emerging as a new power on the global stage.
