Answer:
First we must know about biodegradable polymer, it is a special class of polymer that breaks down after its intended purpose by bacterial decomposition process to result in natural byproducts such as gases, water, biomass, and inorganic salts.
Example of this is PHBV which is poly (3−hydroxybutyrate−co−3−hydroxy valerate)It is biodegradable, non-toxic, bi compatible plastic produced naturally by bacteria.
Option C is correct answer.