What are the monomers of PHBV?

• A. 2-Hydroxybutanoic acid, 2-hydroxypentanoic acid
• B. 2-Hydroxybutanoic acid, 3-hydroxypentanoic acid
• C. 3-Hydroxybutanoic acid, 2-hydroxypentanoic acid
• D. 3-Hydroxybutanoic acid, 3-hydroxypentanoic acid