They could use there beliefs for voting or join a pressure group
I believe it's D hope this helps
Answer:
The Northern states believed that owning people (slaves) was wrong so they wanted to put a stop to it but the southern states refused because they saw slavery as a gain because they wouldn't have to pay the slaves that work for them. So the 2 sides despised each other which led up to the war
Explanation:

Studying and understanding the <u>c</u><u>u</u><u>l</u><u>t</u><u>u</u><u>r</u><u>e</u>, the <u>d</u><u>i</u><u>s</u><u>c</u><u>o</u><u>v</u><u>e</u><u>r</u><u>i</u><u>e</u><u>s</u>, the <u>e</u><u>x</u><u>p</u><u>e</u><u>r</u><u>i</u><u>e</u><u>n</u><u>c</u><u>e</u><u>s</u>, and the <u>a</u><u>r</u><u>t</u><u>i</u><u>f</u><u>a</u><u>c</u><u>t</u><u>s</u>, is people from the past will enable you to make good decisions for yourself and future generations.
hope it helps