Correct Answer: Nylon

Solution : The correct option is Nylon .

Nylon is a synthetic polymer noted for its exceptional strength-to-weight ratio, making it a good material for manufacturing threads, and fibres stronger than similar steel wires. The molecular structure of nylon has high intermolecular forces due to amide bonds, which contribute to its strength. It is suitable for textiles, ropes, and fishing lines because of its flexibility, elasticity, and durability. It can bear strain, and stretch before breaking.