Natural rubber is

Options

A. A polumer of 1,3-butadiene
B. A polymer of ethylene
C. A polymer of 2-methyl-1,3-butadiene
D. A polymer of styrene

Explanation

### Step-by-Step Solution:

1. **Understanding Natural Rubber**:
- Natural rubber is primarily derived from the latex of rubber trees, specifically the Hevea brasiliensis species.

2. **Chemical Composition**:
- The main component of natural rubber is a polymer called polyisoprene.
- Polyisoprene is formed from the polymerization of isoprene, which is chemically known as 2-methyl-1,3-butadiene.

3. **Polymerization Process**:
- The process of polymerization involves the linking of many isoprene monomers to form long chains, resulting in the rubbery material we know as natural rubber.

4. **Properties of Natural Rubber**:
- Natural rubber is known for its elasticity, resilience, and tensile strength, making it suitable for various applications, including tires, footwear, and medical supplies.

5. **Uses of Natural Rubber**:
- Due to its excellent properties, natural rubber is widely used in manufacturing tires, gaskets, seals, and various other rubber products.

### Final Answer:
Natural rubber is a polymer of 2-methyl-1,3-butadiene, also known as polyisoprene, which is derived from the latex of rubber trees. It is characterized by its elasticity and is used in a variety of applications.