which orders the activities from the greatest to least impact to reduce consumption of fossil fuels?

Question

a. Carpool to work, walk to work, drive an electric car to work.
b. Walk to work, carpool to work, drive alone to work.
c. Driving electric car to work, walk to work, carpool to work.
d. Drive alone to work, driving your car to work, carpool to work.
ONLY pick ONe

Answer 1

a. Carpool to work, walk to work, drive an electric car to work.