Correct Answer: Silk

Solution : The correct option is Silk.

Silk is the strongest natural fibre. It is well-known for its high strength-to-weight ratio and flexibility.  Mulberry silk, which is generated from silkworms, is renowned for its strength and has been used for a variety of uses for ages.  Silkworm silk has high tensile strength and has been employed in a variety of sectors, including textiles .