I really think it’s D but that’s my opinion
Answer:
They do this in order to ensure public safety and market fairness.
Explanation:
I hope this helped you <333
National unions differed from local unions in that national unions represented the interests of laborers and workers from all over the country, as opposed to a specific region.
I’m not 100% sure but I think the answer your looking for is that they gained more than 500,000 square miles of land