Which of the following fabrics is typically used for high-quality garments and is derived from cocoons?

Silk is derived from the cocoons of silkworms, making it a luxurious and high-quality fabric commonly used in the production of garments. The process of obtaining silk involves carefully collecting silkworm cocoons, which are then processed to extract the fibers. This natural fiber is renowned for its smooth texture, sheen, and lightweight properties, which contribute to its high status in fashion and textile industries.

In contrast, other fabrics such as polyester, cotton, and wool do not originate from cocoons. Polyester is a synthetic fabric that is made from petrochemicals, cotton is a natural fiber sourced from the cotton plant's bolls, and wool is derived from the fleece of sheep. While each of these fabrics has its own unique qualities and uses, they do not possess the same luxurious characteristics attributed to silk. Therefore, silk stands out as the correct choice for fabric derived from cocoons that is associated with high-quality garments.