Deportation is usually what is used at this point in time.
Hope this helps(:
The sixteenth amendment allows congress to levy income tax, adopted Feb 3, 1913
The civil war wasn't self defense, it was a war over the issue of slavery and the rights of the states, so I'd eliminate B. The south actually had the superior military leaders, the North was struggling with that part, so it's not C either. And D isn't an advantage, it's just a stand view, so that leaves the answer to be <span>A. The north had more natural resources. </span>