Which of these technologies was able to spread because of the growth of american railroad networks ?
a. the electric light bulb
b. the telegraph
c. the mechanical harvester
d. the internal combustion engine

d. the internal combustion engine

Explanation:

There's a type of railway locomotive in which diesel is the prime mover. This type of railway locomotive is called "A diesel locomotive."

Many different types of these were made, but the main different is usually on how the mechanical power is conveyed to the driving wheels.

Early Internal Combustion locomotives at first used kerosene and gasoline as fuel, but eventually, they were improved. In 1898, steel engines reduced sized and improved power of the locomotives.

accomplishment : zachary taylor’s was a national war hero in his battle in an mexican war

explanation:

he was known as a national war hero for his battles in the mexican war, taylor was elected as the 12th president of the united states in 1849. he led the nation during its debates on slavery and southern secession. after serving only 16 months in office, taylor died from cholera morbus on july 9,