Seismic waves are generated by movement along:

a. Oceans

b. Glaciers

c. Faults

d. Fractures

I would believe it is the Faults. On earth there are techtonic plates and where one plate and the other meet up - it is called the fault line. And when two plates i. e. collide, brush against each other etc., then earthquakes, volcanos and tsunamis can be formed. In terms of seismic waves, Earthquakes create seismic waves. Therefore the answer should be c. Faults