The correct option is Jute.
Explanation
Jute is a natural vegetable fibre produced primarily from the plants Corchorus olitorius and Corchorus capsularis. It is one of the most affordable natural fibres and is second only to cotton in terms of production volume and variety of uses.
Analysis of Options
- Jute: It is widely known as the 'Golden Fibre'. This designation is attributed to its shiny, yellowish-brown natural color and its substantial economic value as a cash crop. It is biodegradable and extensively used in making gunny bags, mats, ropes, yarn, carpets, and other artifacts.
- Cotton: Often referred to as 'White Gold' or the 'King of Fibres' due to its global economic importance and white appearance.
- Silk: Known as the 'Queen of Textiles' due to its luster and luxurious texture.
- Hemp: An industrial fibre used for cordage and textiles, but it does not carry the specific moniker of 'Golden Fibre'.
Key Takeaway
Jute is termed the 'Golden Fibre' due to its golden hue and commercial significance. It thrives in hot and humid climates, particularly in the alluvial soil of the Ganga-Brahmaputra delta.