Imagine You Go Hiking in the Desert and Happen Upon

Imagine you go hiking in the desert and happen upon large slabs of granite rock. All around you the ground is a flat, desert floor, except for these few, large slabs of granite. What does that tell you about the geologic history of the area?

A) The area used to be geologically active, complete with volcanic activity.
B) The area used to be geologically inactive. The granite rock is a result of mass movement due to wind and/or water.
C) The area used to be active with intrusive igneous processes. Over time, differential erosion led to the exposure of the once-underground granite rock.
D) Need more information.