Silk is obtained from:

Correct option is B

The correct answer is (B) Bombyx mori.

Explanation:
Silk is primarily obtained from the Bombyx mori, commonly known as the silkworm. The larvae of this moth spin silk threads to form cocoons, which are harvested to produce silk fabric.

Incorrect Options Explanation:

• Musca domestica: This is the common housefly, not a silk-producing insect.
• Butterfly:Butterflies do not produce silk in the same way as silkworms.
• Culex: This is a genus of mosquitoes, which are not involved in silk production.

Information Booster:

• Silk-producing insect:Bombyx mori (Silkworm)
• Silk use: Primarily used in textiles, making luxurious fabrics.
• Scientific classification: Belongs to the family Bombycidae.