Final answer:
Post-Civil War era in the US marked an era of significant industrial growth characterized by the development of the transcontinental railroad, introduction of new technologies such as the telephone and light bulb, and a rise in immigration leading both to the urbanization of America and the formation of a more distinct class divide. So, the best answer is d, all of the above.
Step-by-step explanation:
The industrial growth that followed the Civil War in the United States was marked by significant changes such as improved transportation systems, the introduction of groundbreaking new technologies, and a widening economic gap between the rich and the poor.
The construction of the transcontinental railroad was a monumental achievement and a driving force behind this industrial expansion.
It not only connected the East and the West, making the vast mineral resources of the western states accessible, but also paved the way for the large-scale development of other industries.
Innovations such as the telephone and the light bulb, alongside advances in steel manufacturing, revolutionized communication and living standards.
During this period, the United States saw a significant rise in immigration, with approximately 14 million people moving to the country to seek work in the burgeoning factories.
This migration led to a transformation from a predominantly rural society to an urbanized one, where craft industries were replaced by large factories that often featured long working hours, low pay, and unsanitary conditions.
This in turn led to the growth of labor unions.
So, the best answer is d, all of the above.
Q:"During this time, the US experienced great change due to improved transportation, new technologies, and a growing gap between the rich and poor.
A) transcontinental railroad,
B) telephone, lightbulb, steel
C) immigration, hull houses, Jacob Riis, robber barrons"
D) all of the above.