`PHBV` is a copolymer of

Options

A. 3-Hydroxy butanoic acid and 3-Hydroxy pentanoic acid
B. 2-Hydroxy butanoic acid and 2-Hydroxy pentanoic acid
C. 4-Hydroxy butanoic acid and 4-Hydroxy pentanoic acid
D. 3-Hydroxy butanoic acid and 2-Hydroxy pentanoic acid

Answer

To answer the question, "PHBV is a copolymer of," we will break down the information step by step.

### Step-by-Step Solution:

1. **Understanding Copolymers**:
- A copolymer is formed when two or more different types of monomers polymerize together. This process is known as copolymerization.

2. **Identifying PHBV**:
- PHBV stands for Poly(3-hydroxybutyrate-co-3-hydroxyvalerate). It is a type of biodegradable copolymer.

3. **Determining the Monomers**:
- The two monomers that make up PHBV are:
- 3-hydroxybutanoic acid (also known as 3-hydroxybutyrate)
- 3-hydroxypentanoic acid (also known as 3-hydroxyvalerate)

4. **Conclusion**:
- Therefore, PHBV is a copolymer of 3-hydroxybutanoic acid and 3-hydroxypentanoic acid.

### Final Answer:
PHBV is a copolymer of **3-hydroxybutanoic acid and 3-hydroxypentanoic acid**.

---