Which circumstance was most directly responsible for the rapid growth of the railroad industry? a. railroad owners sold stock to investors to finance the construction of railroads b. builders agreed on a universal width for train tracks c. inventors developed air brakes and more efficient train-car connectors d. pullman began manufacturing cars for overnight travel answer the right answers

The Answer is A. Railroad owners sold stock to investors to finance the construction of railroads

Correct answer choice is:

Explanation:

Assembling railways were and yet is a quite costly capital-intensive trading. Not just did it need huge groups of workers but the area had to be purchased and the tracks themselves also had to be placed. To do that the rail firms traded shares to investors and inflated the capital.

The administration giving extensive land easements to the tracks for free. This was the most significant element of the equation. Outwardly the land concessions, all the different technological features were insignificant objects of interest.

there are no mutiple choices here