19. Dax just completed a report on car transportation. He concluded that gasoline prices will likely rise significantly in the years to come and recommends lower-
cost car transportation for the future. Dax's younger sister, Ava, just completed a
report on air pollution. Ava concluded that gasoline-powered cars cause too
much pollution and recommends that they should not be used in the future.
Which of the following is a solution for the future that would follow both Dax's
and Ava's recommendations? *
O development of cars that run on fuels that pollute less and cost less than gasoline
enactment of laws that require gasoline to cost more and cause more pollution
O development of gasoline-powered cars that have better fuel efficiency
O enactment of laws requiring all people to ride bicycles instead of driving cars