Answer:
C. Styrofoam
Explanation:
Styrofoam is a type of plastic made from styrene - and therefore recyclable. However, despite its origin, Styrofoam contains no toxic or environmentally harmful elements and this makes Styrofoam not commonly recycled. This does not mean, however, that its improper disposal does not pose a risk to nature: it is actually a material that has a very long decomposition time, polluting the environment and crowding landfills.
