What does Edit > Auto-Align Layers do, and when is it typically used?

What does Edit > Auto-Align Layers do, and when is it typically used?

• A. Merges layers into a single composite.
• B. Aligns multiple layers to align content (panoramas/composites) by different alignment methods.
• C. Crops the image to the current canvas size.
• D. Applies a global transform to all layers equally.

Answer: (B)