In order to make vehicles more energy efficient, what can be done?

a. improve fuel standards; more miles per gallon
b. improve engine design
c. reduce the weight of the car
d. all of the above

I’d say D. All of the above, but I’m not particularly knowledgeable about this, so I could be wrong.

the answer would be c. motion and direction

i hope this : )

uranium fissions/breaks up giving out energy and neutrons