I REALLY! REALLY!! REALLY!!! NEED HELP!!! WILL GIVE BRAINLIEST AND VOTE AND WILL RATE!!!! AT LEAST TAKE A LOOK PLEASE!!! WILL FOREVER THNK YOU!!!!

9. How can someone live smarter to reduce his/her carbon footprint?
A) live in a smart community
B) remove insulation
C) buy inefficient appliances
D) use incandescent bulbs