Sorry if this is a little late but im almost positive it is C
<span>The secession of several border states</span>
Answer:
Groundwater.
Explanation:
Becasue it's underground and not on the surface.
It would include a lot of walking. Some children had to walk miles bundled up during the winter. Most times there would only be one classroom with all ages and grades in it. So you could write about you being a 9 year old and you got the seat next to the biggest kid in the class. You could write about recess. The kids were not as supervised as they are now. The teacher usually stayed in the classroom. You could write about lunch. Sometimes the kids walked home for lunch but most cases brought a sack lunch. Hope this helps!
It led to Minneapolis and Cleveland becoming industrial centers.
