Final Answer:
The correct answer is E. A-keratin, B-collagen, C-cellulose.
Step-by-step explanation:
Wool primarily consists of keratin, a fibrous protein that is also found in human hair and nails. Cotton is composed of cellulose, a complex carbohydrate that forms the structural component of plant cell walls. Leather, on the other hand, is made up of collagen, a fibrous protein that provides strength and flexibility to connective tissues in animals.
In detail, wool's keratin fibers give it unique properties such as warmth, flexibility, and resilience. Cotton's cellulose fibers contribute to its soft and breathable nature, making it a popular choice for textiles. Leather's collagen fibers make it durable, yet flexible, and it possesses natural insulating properties.
Understanding the composition of these textiles is crucial for various industries, including fashion, manufacturing, and design. Each material's distinctive properties arise from the specific arrangement and characteristics of its main components.
In conclusion, the main components of wool, cotton, and leather are keratin, cellulose, and collagen, respectively, making option E the correct choice. This knowledge is essential for selecting appropriate materials for different applications based on their unique properties and characteristics.