What effect did the construction of the transcontinental railroad have on coast-to-coast communication?
The railroad made coast-to-coast communication instantaneous.
The railroad reduced coast-to-coast communication time from about a week to about a day.
The railroad reduced coast-to-coast communication time from about 180 days to about a week.
D.The railroad made coast-to-coast communication more complicated.
The railroad made coast-to-coast communication instantaneous.
The railroad reduced coast-to-coast communication time from about a week to about a day.
The railroad reduced coast-to-coast communication time from about 180 days to about a week.
D.The railroad made coast-to-coast communication more complicated.