Which of these best describes the result of the korean war in 1950 - 1953

A new border between North and South Korea was drawn, which gave South Korea some additional territory and demilitarized the zone between the two nations. The war cost the lives of millions of Koreans and Chinese, as well as over 50,000 Americans. It had been a frustrating war for Americans, who were used to forcing the unconditional surrender of their enemies. Many also could not understand why the United States had not expanded the war into China or used its nuclear arsenal. As government officials were well aware, however, such actions would likely have prompted World War III.

It left North Korea and South Korea divided at the 38 Parallel.

a stronger central government  

its what they are