Answer:
Income is money you earn, usually from working at a job.
These were called the Palmer raids and were a part of the red scare. He did it because they were accused of being communists and anarchists, or were just too much left and liberal. This was out of fear that they might get enough people and start their own revolution in the country.
The answer to your question is,
Continents on the east side could fit snugly against those on the west.
-Mabel <3
I believe 1 is D because it’s the most one that makes sense