QUICK I DONT HAVE TIME! I AM DOING A TEST WITH 25 QUESTIONS IN 1 HOUR

How is an ecological footprint determined? a. An ecological footprint is determined by measuring the average amount of land and water that a person in a region uses. b. An ecological footprint is determined by measuring carbon dioxide emissions for a given region. c. An ecological footprint is determined by measuring the rate of water use. d. An ecological footprint is determined by measuring the amount of waste generated in a given region. Please select the best answer from the choices provided A B C D