How do you apply a non-destructive color correction to only one layer?

How do you apply a non-destructive color correction to only one layer?

• A. Create an adjustment layer and clip it to the target layer (Alt/Option-click between layers) so the correction affects only that layer.
• B. Apply the adjustment directly on the layer.
• C. Create a separate document with the correction.
• D. Use the Paint Bucket Tool.

Answer: (A)