The implications of shadow effect on a wall are?

The correct choice indicates that the implications of the shadow effect on a wall are considered to be cosmetic only. This means that while the shadowing may create an aesthetic issue, such as patches or color variations on the wall, it is not indicative of structural problems or failures in construction. Shadows on walls can result from various factors, including inconsistent painting techniques, uneven surfaces, or the interplay of light and texture, but they do not affect the functionality or integrity of the wall itself.

In contrast, issues such as failed lathing, wall racking, or an inability to hold nails and screws point to deeper structural problems that can compromise the wall's stability and durability. However, the shadow effect is purely visual, allowing homeowners to address it through cosmetic repairs or paint without the need for structural reinforcement or significant repairs.