Adjustments made to achieve a level wall on an unlevel footing would involve what aspect of masonry?

Achieving a level wall on unlevel footing primarily involves the bed joints in masonry. Bed joints are the horizontal layers of mortar that support the masonry units. To create a level wall, adjustments must be made to these joints. This can mean increasing or decreasing the thickness of the mortar in certain sections to compensate for the unevenness of the footing beneath. By carefully adjusting the bed joints, a mason can ensure that each course of blocks or bricks remains level, maintaining the structural integrity and aesthetic appearance of the wall.

While other aspects like jambs and corner settings play important roles in masonry construction, they are not directly related to the foundational alignment adjustments needed when dealing with unlevel footings. Reinforcement alignment typically refers to the placement of rebar within the masonry element, which does not address the leveling of the wall itself. Thus, focusing on the bed joints is essential for achieving the desired level wall.