The Sacco and Vanzetti case, the Red Scare, and the activities of the Ku Klux Klan all represent the fear of the spread of communism held by some Americans in the 1920's.
The new life for immigrants in America was harsh. Most immigrants were poor and in order to support their family's they had to find a job and a living space quickly. Since they needed to make money quickly factories would often offer them a job but pay them less than they would Americans. The immigrants took up the job offers since it was the only thing that would help them support their families.
I hope this helps!
<h3>
PLEASE DO NOT COPY WORD FOR WORD. USE THIS AS AN INSPIRATION TO SPARK YOUR OWN IDEAS!</h3><h3>THANK YOU!</h3>
Answer:
A if not D choose whichever you think is more reasonable between A and D
Explanation:
<h2>

</h2>
Earth's mass has remained constant, and thus the gravitational pull at the surface has decreased over time; Earth's mass has grown with the volume in such a way that the surface gravity has remained constant; Earth's gravity at its surface has increased over time, in line with its hypothesized growing mass and volume.