Step 1: Understanding biodegradable polymers.
Biodegradable polymers are materials that can be broken down by microorganisms over time. Dextron is a biodegradable polymer, unlike PVC, polyethene, and Teflon, which are non-biodegradable.
Step 2: Analyzing the options.
(A) PVC: Polyvinyl chloride (PVC) is a non-biodegradable polymer and is widely used in pipes and flooring.
(B) Polyethene: Polyethylene is a non-biodegradable polymer commonly used in plastic bags and bottles.
(C) Dextron: This is the correct answer as it is a biodegradable polymer.
(D) Teflon: Teflon is a non-biodegradable polymer often used in non-stick cookware.
Step 3: Conclusion.
The correct answer is (C) Dextron, a biodegradable polymer.