Answer :
The correct answer is D. Robert E. Lee. He was an amazing officer in the US army, but he was hurt after the war. However, he did want to continue his work, but he didn't agree with the slavery policy as well as some other things in the country he loved, which is why he resigned his commission because he was so loyal to his home state. To this day, this man remains an American hero.
Answer: Robert E. Lee
Explanation: Because he was with the other side of the war instead of with his side and they figured out.