Final answer:
The growth of suburbs in postwar America was primarily influenced by the availability of automobiles and the interstate highway system, which facilitated commuting. The rise of white-collar jobs additionally contributed to this trend, as more people sought quieter residential areas. Other factors, such as civil rights legislation, had less impact on the suburban expansion during this time.
Explanation:
Factors Leading to the Growth of Suburbs in Postwar America
After World War II, America saw significant movements towards suburbanization, and the primary factor contributing to this growth was the availability of automobiles and the interstate highway system (Option OC). This infrastructure made it feasible for families to live farther from urban centers, enabling them to commute easily to work.
Alongside this, the rise in white-collar jobs (Option OB) contributed to the demographic shift, as more individuals sought residential areas that offered a quieter lifestyle, away from the bustling cities. The construction of affordable housing in the suburbs, facilitated by the GI Bill and other housing programs, also fostered this movement.
Conversely, factors such as the end of segregation in suburban schools and the passage of the Civil Rights Act of 1957 played less direct roles in suburban expansion during this period, as they primarily addressed civil rights issues rather than driving suburban development. Therefore, the most significant catalyst for suburban growth was the combination of automobile accessibility and improved transportation infrastructure.
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