You Have a Lively Discussion About Environmental Issues with a Fellow

You have a lively discussion about environmental issues with a fellow student in your class. a.This student tells you that her family has purchased a bio-diesel fuel generator and uses it to produce fuel for the family vehicles.
They collect used cooking oil from local fast-food restaurants to supply the raw materials for this process.
Which of the following Sustainability Dozen recommendations is this student carrying out?

A) Use renewable energy.
B) Recycle (as part of the four Rs) .
C) Drive an energy efficient vehicle.
D) Reduce car use.
E) All of these answers except reduce car use.