Based on the sources, which of the following conclusions can be drawn about the effect of transportation technology during the latter half of the 20th century?

Use of private vehicles in Canada decreased as suburban areas became connected to cities by public
transportation, thereby increasing access to economic opportunities,
More people purchased private vehicles in Greece despite the prohibitive cost of maintenance, and this had positive
effects on suburban economies.
Suburban sprawl in places like Sweden was mitigated by public transportation systems, and the use of private
vehicles grew very little.
The popularity and purchase of private vehicles supported the United States' suburban development and expansion
because it enabled more people to work.