Which of these was a consequence of the Civil War?

A- General William Tecumseh Sherman's March to the Sea destroyed Southern transportation lines.
B- President Lincoln's Gettysburg Address persuaded the South to disarm and surrender.
C- Maryland became a territory due to the writ of habeas corpus.
D- The Southern states gained a new primary source of income.

I think it is A but I just want to be sure

I meant D, I think it is D but I just want to be sure***

Okay I just looked back at my notes, it included a passage and it helped me determine that the best answer is A, thank you for your help

Oh, okay your right, D wouldn't make much sense.

So then it is A

I think A is the answer -- but I don't like it either. I don't think Sherman's march destroyed all or even a large part of Southern transportation lines.

I don't think it was D. If it is, what was this new source of income?

You are welcome.