B)
Source: http://www.loc.gov/teachers/classroommaterials/presentationsandactivities/presentations/timeline/civilwar/recontwo/
The correct answer is that the war would cost American lives.
Whenever the United States enters a war, there is also the risk of losing soldiers who are fighting over seas. This is general knowledge for most Americans, as they understand that the individuals who enroll in these services due run the risk of having to fight in potentially dangerous situations. This was no different during World War I, as this situation became a reality for thousands of soldiers.
According to the graph, almost as many deaths occurred in the Civil War compared to other U.S. wars combined. In fact, there were approximately 655.000 deaths in the Civil War (between both sides), and almost 700.000 in all the other U.S. war added together. So with this data we can affirm that the Civil War was the bloodiest conflict in American history
.
The answer to your question is coastal areas. D