Correct option is D
A brick cut across its width is known as a "bat." Bats are used in brickwork to adjust the layout or fit of bricks in walls, especially at the edges or corners. They are not full-sized bricks but are cut to specific dimensions as needed.
Closer: A brick cut to fit into a specific space, typically used at the end of a row.
Base: Generally refers to the bottom part of a structure or element.
Half brick: A brick cut into two equal halves, typically along its length.
Therefore, the correct answer is (d) Bat.