The result of the mass production and widespread ownership of automobiles was A. greater mobility and movement to the suburbs among middle and upper-class families and C. calls for safety devices and regulation.
Before the mass production and ownership of automobiles, there was not a massive movement to the suburbs. The mass production of automobiles created more jobs and did not decrease consumer debt. The mass production of automobiles did also lead to calls for safety devices and regulations.
Thus, instead, the mass production and widespread ownership of automobiles led to A.
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