Concept:PHBV is a biodegradable copolymer made from two monomers: 3-hydroxybutyrate and 3-hydroxyvalerate.Explanation:PHBV stands for Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)."Poly" means it is a polymer."3-hydroxybutyrate" and "3-hydroxyvalerate" are the two monomer units."co" indicates it is a copolymer where both monomers repeat in the chain.This polymer is produced by bacterial fermentation.Only option C correctly lists this full form.Answer:Option C: Poly (3 - Hydroxy butyrate-co-3 hydroxy valerate)