Millions of years ago, the area pictured was the site of a mountain range. Today, a few plateaus are all that remain. What can be said about the remaining rock forms? A.
Only the weakest portions of the rock remain.
B.
Due to a lack of rainfall in the area, rain is not a factor in the erosion process.
C.
The rock has been worn down due to continental drift.
D.
The remaining forms consist of the hardest rock.