Technological innovation and growing<span> trade with other nations. Industrial growth.</span>
The Enlightenment thinkers changed peoples' beliefs of how government should work by talking of separation of powers and checks and balances.
The United States wanted a method of export and transportation to and from the United States originally when Panama was a part of Colombia. This is why they helped Panama's revolution to become its own independent country. If they had good relations and Panama went as planned, the US could finally build the canal they wanted so badly. The canal now allows transportation of many of the goods we purchase and use today here in the United States.
The southern colonies reliance on slave labor eventually could have caused problems because it kept the economy from developing manufacturing jobs or other jobs for the middle class.
The answer to this a D in my opinion thats the best answer