The best option from the list would be that both sides "<span>attacked industrial regions to destroy the other side’s industry," since this was the first "total war" in which nothing was technically "off limits" for attack. </span>
Answer:
The South's sub actually scored the first kill by a submarine in history. However, the submarine did not survive.
Explanation:
1: Treaty of Paris
2. Cuban Rebellion
3. USS Maine Sinks
4. De Lome Letter
5. U.S declares war on Spain
6. U.S lands on Cuba
:D