The correct answer is:
B. Relocation to suburbs.
Relocation to suburbs has been a constant of urban life since the early 1900s.

Answer:
I dont know how to I'm very very sorry.
Explanation:
The document that institutionalizes American ideas is "the Declaration of Independence".
<u>Explanation:</u>
The Declaration of Independence (DoI) and the Constitution are documentation that provide the idealistic pillars for the United States' democratically elected government.The independence or DoI, provides a framework for the principles of popular sovereignty, the notion that government is needed to serve the public who elect a leader to convey their desire.Whereas the Constitution of U.S illustrates its government program's blueprint, which seeks to equalize freedom of the individual with law and order.
With the boom in industrialization in the late 1800s, the biggest cities got much bigger. This was more possible now because railroads could bring in the raw materials needed for industry and could take out the finished goods. ... Thus, industry and trade had a great impact on the growth of cities in this time.