Answer: Option (C) is the correct answer.
Step-by-step explanation:
Synthetic polymers are the polymers which are made by human beings.
For example, polyester, nylon, polyethylene etc are all synthetic polymers.
Whereas polymers which occur naturally in the environment are known as natural polymers.
For example, rubber, cotton, cellulose etc are all natural polymers.
Out of the given options though polyethylene is a synthetic polymer but it is not used as a fiber.
Hence, we can conclude that nylon is the synthetic polymer which is made into fibers that do not wear out easily.