Reducing the Carbon Footprint of an Organization Could Be Accomplished

Reducing the carbon footprint of an organization could be accomplished by:

A) Using solar power rather than electricity as a power source in an operating plant
B) Using natural gas rather than nuclear power as a power source in an operating plant
C) Burning leaves in the parking lot openly rather than using coal as a power source
D) Reducing the size of the production facilities to make the footprint smaller