4 (3
1
2
Problem
Which region of the United States experienced industrialization
and urbanization the most?
A O Region 2
B
Region 3
с
Region 4
D
Region 1

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.

answer: b.

explanation:

in the 1950s, country music came into its own before rock-n-roll took off in the 60s while jazz and classical music continued to innovate

b is the answer i am assuming