Answer:
To promote transcontinental railroads.
Explanation:
The transcontinental railroads were a project made by the United States government and the railroad companies to create one railroad that connected several states to create one large distribution chain,.
The used pamphlets, brochures, and magazines to spread the news about his project.
All of the advertising was made to attract private investors for the project, future consumers, and information about job openings for railroad workers position
I’m not entirely sure, but since no one has answered yet, I’d go with C. It seems to relate most to what the Federalist and Democratic-Republicans disagreed on most.
So every government can have a set of rules in their area without having conflict.