Respuesta :
The transcontinental railroad was completed in 1869. Thus, the correct option is C). 1869
What is a transcontinental railroad?
A transcontinental railroad is a railroad trackage, that crosses a continental land mass and has terminals at different oceans or continental borders.
It was built on May 29, 1869, begin in Omaha, Nebraska and end up in Sacramento, California.
The first railroad in North America.
Learn more about a transcontinental railroad here:-
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