Hint: The queen of fibres is the prettiest fibre among other fibres.It is the most beautiful garment and it looks really elegant.
1) The downy coat produced by the Angora rabbit is known as angora hair or Angora fibre. Angora fibre is distinct from mohair, though the names of the source animals are similar, which comes from the Angora goat. Angora fibre comes from the cashmere goat and is also distinct from cashmere.
2) A variant of spun cashmere which is fine is known as pashmina which is the animal-hair fibre forming the downy undercoat of the Changthangi goat. The word pashm means wool.
3) Because of it’s prettiest fibre among other fibres silk is called the queen of fibres. It is extracted from cocoon, when the worms start pupating in their cocoons, they are dissolved in boiling water to extract the long fibres which are again fed into the spinning wheel.
4) For a family of synthetic polymers nylon is a generic designation based on aliphatic or semi-aromatic polyamides. Nylon can be melt-processed into fibers, films, or shapes because it is a thermoplastic silky material. Similar to the peptide bonds in proteins nylon is made of repeating units linked by amide links.
Hence, The option C: Silk is the correct answer.
Note: Silk is known as the Queen of all textile fibres because of its sheen and luster. It is one of the most beautiful and precious fibres given to us by nature and has been very much overshadowed over the past few decades by the other natural fibres and more particularly by synthetics.