Exfoliation Occurs Because

Exfoliation occurs because

A) water combines with minerals and increases their size,thereby causing surrounding minerals to pop out of the rock matrix.
B) water freezes in joints and expands.
C) overlying rock is removed,thereby allowing the underlying rock mass to expand and fracture.
D) water dissolves minerals and carries them away changing the shape of the rock.
E) metallic elements in rock combine with oxygen to form oxides that are much weaker than the parent rock.