It is called the diction.
Angst, in writing, is like a dark story. One that has a sad, dark, etc. plot to it. On the other hand, tone is how a writer feel towards a topic.
This seems like it belongs more in the catagory of history but if the author is Thomas Jefferson, or any president from Jefferson until the Civil War than they are most likely for it
Answer:
I believe the answer is B
No sure why
He is not. My. Teacher