Idk ha gotti sorry jk I'll get the answer
The answer is conditioned stimulus. It was before a neutral stimulus that, after becoming linked with the unconditioned stimulus, it then becomes to cause an a conditioned response to happen. In this problem, the conditioned stimulus would be the mentioning of the doctor's since you remember that you've cried because you got shots. So every time you hear this, then you will cry.
Answer:
In the north,slavery wasn't needed there since they were more industrial and didn't have the right climate for crops. They also thought it was wrong,but in the south,people had crops like indigo,tobacco and cotton. They made a fortune off of the slaves and thought it was right.
Explanation: