Answer:
I'm pretty sure it's the second option
I choose C and E, but I don't know if you need to only choose 1 (:
It was used to foul the rapidly increasing motorized vehicles
<span>The expansion made the issue of slavery a bigger issue as it expanded slavery into the western territories. This brought about a lot of conflict. It even was an issue in congress. The north didn’t need slavery due to the industrial revolution, where as the south was still using slavery as a way to keep up their plantations.</span>