When using a clipping mask, which layer's visibility is constrained by the mask?

When using a clipping mask, which layer's visibility is constrained by the mask?

• A. The layer above is constrained by the opaque areas of the layer below.
• B. The layer below is constrained by the opacity of the layer above.
• C. Both layers are blended with a separate mask.
• D. The top layer is unaffected by clipping.

Answer: (A)