Answer:
The expansion of the military-industrial complex in the 1950s and 1960s had a significant impact on migration patterns in the United States. The answer is A. More Americans moved to regions in the Southeast and Southwest.
Step-by-step explanation:
The military-industrial complex, which refers to the close relationship between the military and the defense industry, led to the establishment of military bases and defense-related industries in various parts of the country. Many of these installations were located in the Southeast and Southwest regions, which saw a significant influx of people seeking jobs in the defense industry.
This resulted in a significant population shift from the Northeast and Midwest to the Southeast and Southwest regions, which became known as the "Sunbelt." The growth of the Sunbelt region was also fueled by factors such as warmer weather, lower taxes, and a lower cost of living, which made it an attractive destination for retirees and businesses.
As a result of this population shift, cities in the Sunbelt grew rapidly, while many cities in the Northeast and Midwest experienced population decline. The expansion of the military-industrial complex thus played a significant role in shaping migration patterns and urbanization trends in the United States during the 1950s and 1960s.