The correct answer is C.
A fault is a crack in the earth s crust. Generally, faults are associated with, or form, the boundaries between the tectonic plates of the earth. In an active fault, the pieces of the earth s crust along the fault move with the passage of time.
Faults are often not just a crack in the rock, but a variety of fracturess caused by similar movements in the earth s crust. These fault groupings are referred to as fault zones.
