Question

question 10 of 10
in order to make their schedules more standard, what did the railroads do?
a. divided the united states into time zones
b. forced every train to leave its station on the hour
c. put the whole united states on the same time
d. allowed each train to set its own schedule

Explanation:

To standardize schedules, railroads divided the US into time - zones. This helped in coordinating train movements across long distances.

Answer:

A. Divided the United States into time zones