Which of the following is an example of a vegetable fiber?

Cotton is classified as a vegetable fiber because it is derived from the cotton plant's fibers, specifically from the seed hairs that grow on the seeds of the cotton plant. These fibers are composed primarily of cellulose, a carbohydrate that is a key component of plant cell walls. Since cotton originates from a plant source, it is considered a natural fiber, specifically a vegetable fiber, in contrast to animal fibers like silk and wool, which come from silkworms and sheep, respectively, or leather, which is derived from animal hides. Understanding the source of these fibers helps to classify them correctly in the context of textiles and materials.