The correct answer is A) Nilavilakku.
A nilavilakku is a traditional lamp made of brass or bell metal. It is used in Hindu temples and homes for worship. The lamp has a cylindrical body with a flared top and a handle. It is decorated with intricate designs and is often gilded. The nilavilakku is lit during prayers and festivals. It is believed that the light of the lamp represents the light of knowledge and wisdom.
Brass and bell metal are both alloys of copper and zinc. Brass is a yellow alloy, while bell metal is a white alloy. Both metals are durable and easy to work with. They are also resistant to corrosion. Brass and bell metal have been used for centuries to make a variety of objects, including lamps, utensils, and jewelry.
The other options are incorrect.
B) Kasavu sari is a traditional Kerala sari made of cotton. It is usually white or off-white in color and has a simple design. The sari is often worn by women for special occasions.
C) Chundan vallam is a traditional boat used in Kerala. It is made of wood and has a long, narrow hull. The boat is often used for fishing and transportation.
D) Chenda is a traditional drum used in Kerala. It is made of wood and has a cylindrical body. The drum is often used in temples and for folk music performances.