Which component provides structure and stability to the casket?

The component that provides structure and stability to the casket is the block. The block serves as a critical part of the casket's construction, typically located at the corners or the base, providing support and anchoring other components of the casket together. It ensures that the casket maintains its shape, especially during handling and transport.

In the context of casket design, the body refers to the main part of the casket that houses the deceased, but it does not specifically provide structural stability. The base molding is primarily an aesthetic feature that finishes off the lower edge of the casket, and while it may contribute to the overall appearance, it does not offer significant structural support. The bench, if referring to a seating or resting surface, does not relate directly to the structural aspects of the casket itself. Thus, the block is essential for maintaining the integrity and strength of the entire casket structure.