Theodore Roosevelt was an imperialist and supported it because he was interested in the US maintaining its power for racial reasons. He believed that the white race was the most dominant over everyone else.
The colony south of Virginia is North Carolina
For the answer to the question above, I believe that the answer is a. Productive Technology. The computers that we have now. The automation of businesses and by the productive technology we can make things easier and efficient.
I hope my answer helped you.