Look in your course. All the info you need is within the lesson. Or ask your teacher
Answer: I think it's D. demand greater tribal self-government...but I am not sure let me know if I am wrong!
It is because the price of products dropped in the gilded age and that is because they made the transport of stuff and services way cheaper that lowered the cost to make them and therefor the price
Your answer is
<span>B.Railroads provided cheap and fast transportation for both raw materials and products.</span>