Correct option is D
A bullnose brick is a special type of brick with rounded edges on one or more sides. These bricks are mainly used for aesthetic purposes, as they provide smooth, curved edges that are visually appealing and functional in certain applications. They are commonly used in:
· Rounding off sharp corners : Bullnose bricks are ideal for creating smooth transitions at the edges of walls, steps, and other structures to eliminate sharp corners, which can be hazardous.
· Decoration purpose : These bricks are often used to enhance the appearance of structures. Their rounded edges can be used to add an element of decoration to the exteriors of buildings, garden walls, and around windows.