Final answer:
Designing products for recycling helps decrease environmental harm by conserving natural resources and reducing the need for new material extraction. The correct option is C.
Step-by-step explanation:
Designing products such that they can be recycled helps with decreasing environmental harm by reducing the amount of raw materials required for production. Recycling conserves natural resources like timber, water, and minerals, and also prevents pollution by reducing the need to extract new raw materials.
Moreover, creating products with the potential for recycling or reuse aligns with the Three R's of Garbage: Reduce, Reuse, and Recycle, a principle that aims to save natural resources and lessen the environmental footprint of our consumer habits.