The correct option is
D Wool
Explanation for the correct option:
(d) Wool is an example of natural fibre.
- Fibres: Fibres are long, thin and flexible thread-like structures that are spun into yarns and then used as fabrics. Fibres can be natural or synthetic.
- Natural fibres: The fibres that are obtained from the nature i.e.;plants and animals.
Explanation for the incorrect options:
Nylon, Terylene and Polyester are the examples of synthetic fibres.
- Synthetic fibres: These are man-made fibres.
- They are prepared from raw materials called petrochemicals.
Therefore, option (d) is correct.