In Diagram A, the rock layers are be parallel to each other and are of equal thickness. There are no discernible forces acting on these rock layers.
The rock layers in Diagram A exhibit a characteristic of sedimentary rock deposition where each layer was formed over time as sediments accumulated horizontally and they subsequently solidified into rock. The uniform thickness of the layers suggests consistent deposition conditions over an extended period.
As mentioned, there are no visible forces acting on these rock layers in the diagram. The layers' parallel and uniform nature implies a relatively stable geological environment during their formation.
Note: The image is attached below.