Q: Fact 1: Cycles of freezing and thawing water cause ice wedging. Fact 2: The processes of weathering, and water or ice wedging may assist in this. Given the two facts above, what causes ice wedging?

pick from the following.
(A). Metling snow.
(B). Condensation.
(C). The sun.
(D). friction.
(E). Gravitational pull.
(F). mechanical.
(G). Weathering.
(H). Animals.
The answer is:
(G).