Which best explains how railroad companies were able to standardize their timetables in 1883?

We are to give determine the explanation as to how the companies or operators of the railroad were able to standardize their timetables on 1883. During this year, the companies needed a time plan that would standardized the time of arrival and departure. With this need, they were able to established Standard Railroad Time.

the one that best explains how railroad companies were able to standardize their timetables in 1883 would be: by working together voluntarily they aware that if they do not do it, their trains fill often ran from one another and could cause a masive accidents. So, they decided to sit down with their competitions and arrange the time table that will benefit all of them.