First question: D- people who were living in America at the time, didn't want other people to come in and "steal their jobs". To me, nativism (at the time) was a pretty stupid thing, considering how many of the people who didn't want anyone else coming into the country, were immigrants themselves.
Second question: D is the closest answer, seeing as Roosevelt wanted to improve relations with Central and South America.
Hope this helps!
Answer:
I believe it is B if it not I am so sorry
<span>the employment of immigration labor tended to drive down workers wages.</span>
This came to be known as the American System developed by Henry Clay