Light of uniform intensity shines perpendicularly on a totally absorbing surface, fully illuminating the surface. If the area of the surface is decreased:
A. the radiation pressure increases and the radiation force increases
B. the radiation pressure increases and the radiation force decreases
C. the radiation pressure stays the same and the radiation force increases
D. the radiation pressure stays the same and the radiation force decreases
E. the radiation pressure decreases and the radiation force decreases
