The answer is most logically option C. This is because while the argument does feel like it is backed up with the statistic, there are no other statistics given for other countries. The argument lacks the information needed.
The man with the long hair is tall
Also, another cause of the lack of political focus during Reconstruction was the great economic prosperity in the North following the Civil War. ... The failure of the North to effectively rebuild the South and bring it back into the Union during Reconstruction is evident after the time period.