I think that the answer is D, to create railroad networks that spanned the entire country
They were able to vote they had more freedom
it ended school segregation immediately
Explanation:
due to it being found unconstitutional
Made killing at a distance more effiecient
Also it made arming, cothing and feeding soldiers cheaper than training them. So now young boys were recruited, armed, hopelessly undertrained and thrown into trench to die, hopefuly killing some opposing soldiers before that. It made soldiers a resource to be expended.
