Reducing the amount of things that you purchase would directly result in both: I and III only.
A product can be defined as any physical object (tangible item) that is typically produced by a manufacturer so as to satisfy and meet the demands, needs or wants of every customer. Some examples of a product include the following:
Generally, when a customer reduces the amount of things that he or she purchase, it would directly result in both:
Read more on recycling here: https://brainly.com/question/376227