The development of cars has been good in some ways and bad in others. The car has allowed for better transportation but it is also responsible for a great
deal of pollution. Which activity helps solve the pollution problem through the
use of new technology?
O A. Building fewer cars
O B. Building cars that give off less pollution
C. Encouraging people to walk more
D. Encouraging people to ride a bus

option b

Explanation:

The option b says that to build less pollutant cars so it is a new technology created to minimize pollution

But the other options tell to the less use the cars so it is not a technology creation.

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