it is important because it helps them to get things done faster
The advantage the north has is A-it had more industries, as the union could build guns, ships cannons at a faster and better rate than the south. The other answers just don't make sense as the south grew the most cotton, they both had experienced commanders, and the weather didn't have much effect. I hope this helps!
The correct answer is (C). Once the Soviet Union entered into World War II against the Nazis, the Nazis were effectively surrounded and now faced conflict with the Western European allies and the United States to the west and the formidable, and well trained and practiced, Soviet Union military to the east.