It provided a means of transportation for goods across the country.
I think D is the answer. I may be incorrect, though.
Answer:
5 plus one is 6 ypir welcome hope yhis helps
I think he used a lot of propaganda to get most Germans to follow him
It was more efficient to slaughter the cattle in Chicago and ship the carcasses to the East, rather than send live cattle east by rail, carcasses could only be shipped during the cold winter months
