Correct option is D
The Parapet Wall is a low-height wall constructed on the edge of a roof slab, balcony, or terrace for safety purposes.
Purpose:
It prevents accidental falls from the roof or terrace.
It acts as a barrier and may also provide support for architectural elements.
Why not the other options?
Boundary Wall: This refers to the wall constructed around the perimeter of a property for demarcation or security.
Partition Wall: This is used to divide the internal space within a building.
Plinth Wall: This is the wall constructed above the ground level to support the structure and protect it from water and dampness.
Conclusion:
The wall on the edge of a roof slab, primarily for safety, is called the Parapet Wall.
