The correct answer is A) Cremation.
Cremation is the process of burning a dead body to ashes. It is one of the oldest and most common methods of disposing of the dead. Cremation is practiced in many cultures around the world, including Hinduism, Buddhism, and Jainism.
The discovery of urn burials in various parts of Kerala points to a prehistoric practice of cremation. Urn burial is a type of burial in which the cremated remains of the deceased are placed in an urn. Urn burials have been found in many parts of the world, including Europe, Asia, and Africa.
The practice of cremation is thought to have originated in India around 3000 BC. It was introduced to Kerala by the Aryans, who migrated to the region from northern India around 1500 BC. The Aryans believed that cremation was the most sacred way to dispose of the dead. They believed that the soul would be released from the body and would be able to reach heaven if the body was cremated.
The practice of cremation continued in Kerala after the Aryans left the region. It is still practiced today by Hindus, Buddhists, and Jains.
The other options are incorrect.
B) Mummification is the process of preserving a dead body by removing all of the moisture from it. It is a very complex process that requires a lot of time and effort. Mummification was practiced in ancient Egypt and in some other cultures around the world.
C) Secondary burial is the practice of burying a body once, then digging it up and burying it again at a later date. This practice was common in some cultures in ancient Europe.
D) Sky burial is the practice of leaving a dead body on a mountaintop or in a tree so that it can be eaten by vultures. This practice is still practiced in some cultures in Tibet and Mongolia.