The fibres, such as nylon and polyester, that are made from chemical substances are called:

Correct option is C

The fibres, such as nylon and polyester, that are made from chemical substances are called Synthetic fibres
· Synthetic fibres are man-made fibres that are produced entirely from chemical substances.
· They are not derived from natural sources like plants or animals. Instead, synthetic fibres are created through chemical processes in laboratories or manufacturing facilities.
· Examples of synthetic fibres include nylon, polyester, acrylic, polypropylene, and spandex.