The Texture of the Surface of the Moon May Be

The texture of the surface of the Moon may be described as:

A) eroded basalt held together by subsurface ice (permafrost) .
B) hard bedrock almost everywhere, because there is very little erosion on the Moon.
C) regolith (pulverized rock) in and near craters but hard bedrock everywhere else.
D) regolith (pulverized rock) covering the entire lunar surface.