Which bond is characterized by a decorative pattern made using stack bonds?

Stack bond is characterized by the arrangement of bricks that are laid in a vertical alignment, creating a pattern where the joints of each course align directly above the joints of the course below it. This type of bonding typically results in a more decorative appearance due to its consistent and uniform pattern.

In design, stack bonding is often used to achieve an aesthetic effect, making it visually distinct compared to other types of bonds. While other bonds like Flemish, American, and English involve various arrangements of headers and stretchers that enhance structural integrity, stack bond focuses more on the visual and aesthetic aspects in its simplistic and repetitive layout. Therefore, when aiming for a decorative outcome in masonry, stack bond is the correct choice, showcasing its unique pattern as the defining characteristic.