A group of students constructs an experiment testing the effects of force on an object.

A group of students constructs an experiment testing the effects of force on an object. Some of these materials they use are items produced from nonrenewable resources. What is the wisest choice for disposal of these materials?
a) throw the items in a trash can
b) place the items in a metal trash can and burn them
c) place the items in a recycling bin
d) return the items to the store