How can you make a car more energy efficient?

Select one:
a. idle excessively
b. burn more fuel
c. paint the car
d. tune the engine

This best answer is d because if u idle you either waste gas or burn the engine out and what is painting the car going to do
So the answer is d

Iread this book last year so take this with a grain of salt.gene jumps from the tree to compete with finny due to the fact that gene is always trying to do better than finny. he is put under the grasp of peer pressure due to finny almost forcing him to do this. ever since he first jumped finny kept pressuring him to jump since he thought gene enjoyed jumping.rather than uses this answer you should probably just reread chapters 3-4