Answer:
b
Explanation:
the north was more industrialized than the south, relying more on factory work than farming but because it wasn't illegal, some people still had slaves
B. They are longer and more detailed
A. the rise and fall of successive families of rulers in China
The dynastic cycle is the theory that each new dynasty goes through a cultural cycle under the mandate of heaven.
During the 1920's the economy would be recovering from the war they lost (World War 1) but in the late 1920's and early 1930's they were starting to get back up on their feet and got to full strength by 1939, which is when Hitler and his Reich started their "Blitzkrieg".
