Mercury Features Long, Steep Cliffs in Its Crust Called "Scarps

Mercury features long, steep cliffs in its crust called "scarps" which probably formed

A) after impacts from a planetesimal or asteroid.
B) from floods of running water left to evaporate after comet impacts.
C) as plates of crust shifted as a result of massive earthquakes at a fault.
D) like giant wrinkles as the crust cooled and shrank.
E) by erosion from high solar winds.