Which of the following reasons best describes why the number of jim crow laws increased in the south in the last decade of the 1800s?

Assuming that this is referring to the same list of options that was posted before with this question, the correct response would be the last option, having to do with the fact that the North withdrew its military from the South and ended enforced Reconstruction, since this allowed the South to get away with passing these discriminatory laws.

The Supreme Court upheld state Jim Crow laws.

The statistics for the eastern war are grim. more than three-million men died in the fighting, more than nine-million men were wounded, and every major country which participated lost its form of government.