Question: What is the significance of the Z-plane in whole-slide imaging (WSI) for histopathology, and how does multi-focal plane imaging enhance tissue analysis? Question options: The Z-plane shows color, helping assess staining quality. The Z-plane is irrelevant; images are viewed in a single plane. The Z-plane measures cellular sizes, not for visualization. The Z-plane indicates depth, allowing capture of varying tissue layers; multi-focal imaging enhances detail across depths. Need Assignment Help?