The Carbon Footprint Is Defined as a Measure of Total

The carbon footprint is defined as a measure of total greenhouse gas emissions caused directly or indirectly by what four things?

A) a factory,an office building,a warehouse,or a truck
B) an organization,a product,an event,or a person
C) an organization,a product,an animal,or a person
D) an organization,a government,a product,or a person
E) a product,an event,a person,or an animal