All of the following were instrumental in suburban life and the rise of the subdivisions except the construction of malls. Option A. is the correct answer. Read below about suburban.
Suburban areas are lower in population area that separate residential and commercial areas from each other. They are either part of a city or urban area, or exist as a separate residential community within commuting distance of a city.
Therefore, such will lack social amenities such as malls. Hence, option A. is the correct answer.
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