The Demilitarized Zone between North and South Korea was created in a. 1953. It established the end of the Korean War and it crosses the 38th parallel (but is not completely on it).
The right answer for the question that is being asked and shown above is that: "c. a research paper detailing the causes of the Civil War." An example of a primary source is <span>a research paper detailing the causes of the Civil War</span>
Can you give us some examples?