Answer:
A. slavery was no longer profitable
Explanation:
During the industrial revolution, American businesses started to used modern machines to replace the existing manual labor. This made using slaves no longer as profitable as it used to.
As a result, people started to give support to abolish slavery. But this support tend to be coming from the northern states. At that time , the southern states were not as willing to adopt the technology from the industrial revolution. This made the southern states still reliant on slaves. This what caused the conflict that lead to the civil war.
<u>Explanation:</u>
A friendship based on shared activities rather than emotional.If you have no emotions for your friends then it is not friendship. Because of emotions you take care of your friends and listen all his/her advice and talks.So this is aspect fro me i hope you get the idea thanks.
First blank: Representativeness; second blank: someone resembles a category prototype.
Hope this helped!!