Three of the four given options are alike in some manner. Select the odd one out.
Cotton, Nylon, Silk, Cashmere

Let’s analyze the given:

·        Cotton - A natural fiber derived from plants.

·        Nylon - A synthetic (man-made) fiber.

·        Silk - A natural fiber obtained from silkworms.

·        Cashmere - A natural fiber derived from goat hair.

Nylon is the only synthetic fiber, while the others are natural fibers.

So, odd one out is Nylon.