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

Aby combining into a single railway company
Bby working together voluntarily
Cby unionizing their labor forces
Dby complying with federal legislation

Verified Answer :

Answer: B. by working together voluntarily

In 1883, railroad companies were able to standardize their timetables. One of the best practice that they did is that they work together voluntarily for the welfare of the majority. It is the unity that they were able to construct that made the standardization of their timetables. 

Answer:

B. by working together voluntarily

Explanation: