The correct answer is: a) Vegetable dyes and lacquer.
Vegetable dyes and lacquer are traditional materials used in the paintings on wooden toys from Etikoppaka and Kondapalli. These materials are used to create bright, vibrant colors that are resistant to fading and chipping. The dyes are made from plants such as turmeric, henna, and indigo, and the lacquer is made from a resin that is extracted from trees.
The use of vegetable dyes and lacquer is a reflection of the region’s rich cultural heritage. These materials have been used for centuries to create beautiful and durable works of art. The use of these materials also helps to support the local economy, as they are produced by local artisans.
The other options are incorrect because they are not traditional materials used in the paintings on wooden toys from Etikoppaka and Kondapalli. Gold leaf and precious stones are not typically used in these paintings, as they are expensive and difficult to work with. Modern acrylic paints are also not typically used, as they are not as durable as the traditional materials. Tempera on canvas is a painting technique that is not typically used in India.
In conclusion, the correct answer is: a) Vegetable dyes and lacquer.