Answer:
Printer
Explanation:
It's been a while since I've read something on Ben, but I think this is correct.
Fredrick Douglas was the African American who said the Mexican War was "disgraceful" because he thought if America would annex Mexico then slavery would be carried over into the new territory.
I believe it was because they owed money
The Nullification Crisis was a conflict between South Carolina and the federal government. South Carolina felt states had the right to nullify federal laws.
The answer is the last one.