Explanation:

The correct answer is option 'D' - Pottery making.

Weavers:
Weavers are skilled artisans who are involved in the production of textiles. They are skilled in the art of weaving and are responsible for creating various types of fabrics and textiles. Weavers traditionally work on handlooms, but modern technology has also brought about the use of power looms in some cases.

Tasks performed by Weavers:
1. Spinning: Weaving involves the process of converting raw materials such as cotton, silk, or wool into yarn or thread. This process is known as spinning. Weavers are involved in spinning the raw materials to create the yarn that will be used in the weaving process.

2. Cotton cleaning: Weavers also participate in the process of cleaning cotton before it can be used for weaving. This involves removing impurities, such as seeds or debris, from the cotton fibers.

3. Dyeing: Weavers are often responsible for dyeing the yarn or fabric to create different colors and patterns. Dyeing is an important step in the textile production process as it adds aesthetic appeal to the final product.

4. Pottery making: Pottery making is not performed by weavers. Pottery making is a separate craft that involves the creation of ceramic objects such as pots, plates, and vases. It requires specialized skills and techniques that are different from those used in weaving.

Therefore, among the given options, pottery making is not performed by weavers. The other tasks mentioned - spinning, cotton cleaning, and dyeing - are all part of the weaving process and are performed by weavers.

Pottery making is done by potter's.