Well they both helped to modernize/industrialize the U.S, so it depends which view point you would like to take. They stole the plans from england, who had successfully monopolized industrialization for almost a century, who would be upset at this loss of control and therefore business. However an American would probably be thankful for the industry that blossomed as a result of these actions.
The correct answer is B) Jefferson Davis: the President of the Confederate States of America.
Jefferson Davis was the first and only president of the Confederate States of America. The Confederate States of America refers to the 7 states that left the Union after the election of 1860. Davis was made president just a few short months after the secession of these 7 states.
It resulted in the national government pulling the last federal troops from the south and formally ending the reconstruction era
By Jesus I think I'm not sure