The correct answer is A. Rayon.
Rayon is a manufactured fiber made from cellulose, a natural polymer found in wood pulp. It is a semi-synthetic fiber, as it is made from a natural material but is processed using a chemical treatment. Rayon is a versatile fiber that can be used to make a variety of products, including clothing, home furnishings, and parachutes.
Viscose is a type of rayon that is made from wood pulp that has been treated with sodium hydroxide and carbon disulfide. It is a strong, lustrous fiber that is often used to make clothing.
Cotton is a natural fiber that is made from the bolls of the cotton plant. It is a soft, absorbent fiber that is often used to make clothing and bedding.
Terylene is a type of polyester that is made from ethylene glycol and terephthalic acid. It is a strong, durable fiber that is often used to make clothing, home furnishings, and industrial products.
Rayon is the best choice for making parachutes because it is a strong, lightweight fiber that can be easily manufactured into a variety of shapes and sizes. It is also a relatively inexpensive fiber, which makes it a cost-effective choice for parachute manufacturers.