The Union victory did solve a handful of problems, it abolished slavery and get rid of the Confederate Union but not every problem could be solved. Personally I would disagree because the Civil War had other problems right after because of the victory.
The answer is D, all of the above. Think of a machine, all parts need to
be well oiled and working together in order to function properly. It's
important for all countries to work together to accomplish one goal.
Resource depletion is a serious problem that all countries are
contributing to.
