Q: Fact 1: Cycles of freezing and thawing water cause ice wedging. Fact 2: An ordinary ice road is therefore severely damaged by cracks induced by the traffic. Given the two facts above, cycles of freezing and thawing water can cause what?

Possible answers: a). clean county roads. b). exposure to cold. c). severely damaged roads. d). Physical weathering. e). colder weather. f). Metling snow. g). smooth safe roads. h). rough riding.
A:
c).