SS.912.W.6.1 (Moderate) Which of the following developments may be seen as a cause of the Second Industrial
Revolution rather than an effect of it?
A
urbanization
B
publication of The Communist Manifesto
с
the flight of the Wright brothers
D
development of the Bessemer process

A.urbanization

Explanation:

And if urbanization was initiated as early as the first Industrial Revolution, the full form of that process occurred during the second Industrial Revolution. This phenomenon has also resulted in negative consequences such as overcrowding. There is the formation of mega-urban centers such as London, New York, Paris, Vienna, and others. In that period, under the influence of Marx and Engels, the first trade unions were formed, which would mean the early struggle for workers' rights.

nativists tried to get rid of the immigrants as they thought they were going to ruin the u.s.  

i think that the answer is polishing peanuts