B. It was to aid Europe after WWII
Samuel Morse invented the telegraph. The telegraph allowed for the United States to continue expansion westward but still be able to communicate with more areas of the country. This communication system typically followed along rail routes and if a rail line was close by this communication system could be used to issue alerts, news, and messages across the country. This technology allowed for a capital on one side of the country to keep tabs on the other coast.
I believe it might be Ford (Henry J. Ford).
The answer to this would be the Commerce Clause. Hope this helps! :)
