Which of the following factors was not a reason why railroads were first built in the indian territory?
a. to make it easier for white settlers to come to the indian territory
b. to encourage the indian territory to trade with its neighbors
c. to take job opportunities away from non-american indians
d. to companies access coal and oil resources in the territory

I don't know, but my best guess is D.

C. To take job opportunities away from non-American Indians

I’m 100% sure this is right. I just took the test :)

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.

the correct answer is:

true

i am an online student and after i submit my quizzes, it gives me the correct answers to any that i may have missed. the answer to this question is true