Synthetic fibre is-

Options

A. Rayon
B. Silk
C. Wool
D. Cellulose

Explanation

**Step-by-Step Text Solution:**

1. **Definition of Synthetic Fiber**: Synthetic fibers are man-made fibers that are produced through chemical processes. Unlike natural fibers, which are derived from plants or animals, synthetic fibers are created using various chemical compounds.

2. **Examples of Natural Fibers**: Natural fibers include materials like silk, wool, and cotton. These fibers are obtained directly from natural sources, such as silkworms for silk and sheep for wool.

3. **Introduction to Rayon**: Rayon is a type of synthetic fiber. It is often referred to as "artificial silk" because it mimics the properties of silk but is made from regenerated cellulose, which is derived from natural sources like wood pulp.

4. **Conclusion**: Therefore, when asked about synthetic fibers, one of the prominent examples is rayon, which is a man-made fiber created through chemical processes, distinguishing it from natural fibers.

**Final Answer**: Synthetic fiber is a man-made fiber, and an example of synthetic fiber is rayon.

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