Answer: I think it’s B but I’m not sure
Explanation: so yeah lmk if I’m wrong
1. What three areas should your writing assignment address about the development of the United States after the American Revolution?
C, D, A
2. The phrase transcontinental nation refers to the United States spanning from the __________.
B
The fourth one( I had the question and got it correct on a test)
Economists have frequently hypothesized that industrialization and its correlates played a major role in inducing fertility decline in the United States after 1850. ... This leaves changes in the cost of raising children as the likely driver of the industrialization result.
I'm not sure if you made a typo or not but in the current context I can only see negligible being relevant.