Farming/ slavery.
This answer really depends on what the question is asking, the southern economy banked heavily off of farming, BUT it was impossible to provide and have such an abundance of crops without slavery. So, it depends on the options you have.
Hope this helps, man!
One of the economic challenges Japan has faced in recent years is "recession," since Japan went through a serious recession in the 1980s, and then agains as recently as 2007.
Answer:
you are the principal of school.