Any fracture or system of fractures along which earth moves is known as a

a. deformation
b. fault
c. strain
d. stress

B fault because an earth doesn't just move but a fault causes IT TO MOVE

I think the correct answer from the choices listed above is option B. Any fracture or system of fractures along which Earth moves is known as a fault. Faults allow the blocks to move relative to each other which results to an earthquake. Hope this answers the question.

D. continental rift