A type of rug which is made by recycling old woollen blankets is known as

Namba
Knotted carpet
Gabba
Tsug-Dul and Tsug-gdan

The correct answer is: C. Gabba

A gabba is a type of rug which is made by recycling old woollen blankets. It is a traditional type of rug that is made in the Tibetan region of China. Gabbas are typically made by hand and are known for their intricate designs and bright colors.

The other options are incorrect for the following reasons:

  • Namba: A namba is a type of rug that is made in the Navajo Nation in the United States. It is typically made from wool and is known for its geometric designs.
  • Knotted carpet: A knotted carpet is a type of rug that is made by hand by knotting wool fibers together. It is a traditional type of rug that is made in many parts of the world.
  • Tsug-Dul and Tsug-gdan: Tsug-Dul and Tsug-gdan are types of Tibetan Buddhist mandalas. They are typically made from sand and are destroyed after they are created.