Which of the following is a source of rayon?

Options

A. Wool
B. PET
C. Wood pulp
D. Silk

Explanation

**Step-by-Step Solution:**

1. **Understanding Rayon**: Rayon is a type of synthetic fiber that is derived from natural sources. It is important to identify the raw material from which rayon is made.

2. **Identifying the Source of Rayon**: The primary source of rayon is cellulose. Cellulose is a natural polymer that is found in the cell walls of plants.

3. **Source of Cellulose**: Cellulose is predominantly obtained from wood pulp, which is derived from trees. This means that the production of rayon involves extracting cellulose from wood pulp.

4. **Evaluating Other Options**:
- Wool is an animal fiber obtained from sheep or goats, so it is not a source of rayon.
- PET (polyethylene terephthalate) is a synthetic fiber made from petroleum products, not from natural sources like cellulose.
- Silk is a natural fiber obtained from silk moths, which also does not relate to rayon.

5. **Conclusion**: Based on the information gathered, the correct answer to the question "Which of the following is a source of rayon?" is wood pulp.

**Final Answer**: Wood pulp is the source of rayon.

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