Which fiber is derived from the flax plant?

Linen is the correct answer because it is a textile made from the fibers of the flax plant. Flax has been cultivated for thousands of years, and its fibers are renowned for their strength, durability, and natural luster. When processed, the flax fibers are spun into yarn, which can then be woven or knitted to create linen fabric. This type of textile is highly valued for its breathability and moisture-wicking properties, making it an excellent choice for warm-weather clothing and household textiles, such as tablecloths and bed linens.

The other options represent different fibers. Cotton comes from the cotton plant, silk is produced by silkworms, and polyester is a synthetic fiber made from petrochemicals. Each of these options has its own unique properties and sources, which are distinct from the flax plant that produces linen.