Reformers worked to change schools by making them more: C.) Accessible to everyone
I’m pretty sure it’s principles of a new government :)
Answer: Slavery became a national issue because it split the country into two groups due to each state's beliefs on slavery. To be more specific, the Southern states were pro-slavery, and the Northern states were anti-slavery. This caused a civil war between the two groups, which made Abraham Lincoln, the president at the time, abolish slavery.
I hope this helped!! :)