When Russia entered WW1, they had mobilized about 1.5 million soldiers. At most, the Russians had 5 million soldiers fighting. They couldn't arm all of these soldiers though, because they only had about 4.6 million weapons.
I would believe your answer is <span>A. Isaac Newton</span>
The Zimmerman telegraph, was a telegraph from Germany to Mexico proposing an alliance in which Germany would give the land that Mexico lost to the United States if the Mexican people would fight the United States and keep them out of the war
The answer is C.) Competing for jobs that they believed should go to people born in America.
Hope this helps :)