A chimney is not permitted to pass through which of the following?

The correct answer highlights the specific safety and construction regulations concerning chimney installations. When examining the guidelines, it becomes clear that a chimney is not permitted to pass through a floor or ceiling due to the risk of fire hazards and structural integrity concerns.

Chimneys must be positioned in a way that reduces the likelihood of flammable materials igniting due to heat transfer. If a chimney were to pass through a floor or ceiling, there’s an increased risk that heat and sparks could escape and ignite surrounding materials. This practice is implemented to ensure greater protection for the building's interior and the occupants.

In contrast, chimneys can go through walls (following specific regulations), as well as through roofs, since they are designed to vent exhaust safely and effectively. Passing through a window is not allowed, but this is primarily for functionality and ensuring that the chimney operates in its intended capacity.