Which panel in After Effects helps ensure selected elements align properly with each other?

The Align panel is specifically designed to assist users in aligning selected elements with each other, making it essential for precise arrangement within a composition. This panel provides options to align layers to their respective edges, centers, or distribute them evenly across the composition space. By using the various alignment tools available within this panel, users can achieve a professional appearance and ensure that elements are perfectly positioned in relation to one another.

The other panels mentioned serve different purposes. The Transform panel displays key properties related to the transformations of a layer, such as position, scale, rotation, and opacity, but does not provide specific tools for aligning multiple layers. The Position panel typically refers to the positional coordinates of individual layers, which allows for moving a layer in the composition but lacks the functionality for multi-layer alignment. The Arrange panel deals with the stacking order of layers, allowing them to be moved forward or backward within the layer stack, but it does not help with aligning the layers themselves. Thus, the Align panel stands out as the dedicated tool for achieving accurate alignments among selected elements.