On May 10th 1869 a symbolic Golden Spike was driven at what was called the Promontory Summit in the Utah Territory to mark the completion of the first transcontinental railroad. This event impacted westward migration and settlement in what way (1 point)
Responses
led American settlers to invest more heavily in the ranching and cattle industries than in traditional farming enterprises.
opened the middle of the continent to more settlement and economic development by connecting many places from coast to coast.
spurred peace negotiations with Native Americans to foster safe construction and operation of the railroad across the western frontier.
encouraged business and industrial development at the expense of farming and ranching in the West by building railroad hubs and towns.