D - he used Chinese advisors to improve his rule.
Answer:
Roosevelt was concerned that some Latin American countries were not paying debts they owed to European countries. He thought the Europeans might come across the Atlantic Ocean and use their military to force Latin American countries to pay back their debts.
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.