What effect did the fugitive slave act have select all that apply?
1) It led to an increase in tensions between the Northern and Southern states.
2) It strengthened the institution of slavery by making it easier for slaveholders to capture and reclaim their escaped slaves.
3) It caused many Northerners to become more sympathetic to the abolitionist cause and motivated them to resist the enforcement of the law.
4) It led to the formation of the Underground Railroad, which helped escaped slaves find their way to freedom in Canada.