I believe the answer is A. An 8-hour day. Hope this helps.
Answer:
The railroad was the mean of transport to new settlers going to the Great Plains in the west who sent crops and grain to cities in the East.
Explanation:
The railroads impacted the migration to the west and helped expanded the country while exchanging crops and grain to the more populated cities stablished in the east.
Answer: Article VI (which stands for article 6).
