Which burial method involves placement in a grave?

The chosen answer refers to the method of interring a body directly into the ground, where it is placed in a grave. This process typically involves preparing the ground to receive the body, which is then buried at a depth that complies with local laws and regulations. Burial is one of the oldest and most traditional methods of handling human remains and is recognized in various cultures and religions.

In this context, understanding the other terms helps clarify why burial is the correct answer. Inurnment typically refers to placing cremated remains in an urn, indicating that the body has already undergone cremation rather than being buried. Cremation is the process of reducing the body to ash and does not involve a grave. Entombment refers to placing a body in a mausoleum or crypt above ground rather than underground, which distinguishes it from the act of burial. Thus, only burial accurately describes the specific method involving placement in a grave.