The invention of the what led to the development of better water transportation and the railroad?
a. assembly line
b. steam engine
c. automobile
d. telegraph

The invention of the steam engine led to the development of better water transportation and the railroad.

Option B

Explanation:

Enhancements to the steam engine were some of the most prominent technologies of the Industrial Revolution. This time of economic growth, which was received in by the introduction of the steamboat, was one of the greatest ever experienced in the United States. Following the arrival of the steamboat, the United States saw unimaginable growth in the transportation of goods.

After the steamboat was invented and achieved several prosperous trials, it was immediately adopted and led to an even quicker change in the way of water transport. The use of steam engines on railroads proved to be extraordinary in the fact that now you could have large amounts of goods and raw materials delivered to cities and factories alike.

the anwser is a) to prevent military conflict