Answer:
Option B
Step-by-step explanation:
The chemical properties of a material play a very important role in recycling and reusing any thing.
For instance - if a plastic on melting transforms into a form which cannot be re-converted into its original form, then such plastics are not reusable materials
A recyclable material must be able to regain its original molecular structure and size though physical processes such as heating, melting, remolding etc.
hence, option B is correct