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How did innovations such as steam power, air brakes, automatic lubricator, and steel tracks affect the railroads?

A. They impoved the ability of railroads to transport goods safely and efficiently.
B. They reduced the cost of doing business and hurt profits.
C. They created licensing problems that the government was slow to overcome.
D. They increased the cost of doing business and reduced profits.

Respuesta :

weightednereid

The correct answer is A. Technological advances such as steam power, air brakes, automatica lubricators and steel tracks have affected the railroads very positively, since it has made it possible that the rail network could become a safer, more efficient and more reliable means of transportation for goods.

Answer:

a

Explanation:

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