strike-slip faults subduction zones mid-ocean ridges continental shelves
I gave my students this multiple choice question: Seafloor spreading occurs along certain boundaries in the ocean. Which are most likely to form at the boundary where the seafloor is spreading?

Only one answer is correct among these 4 choices:
- strike-slip faults
- subduction zones
- mid-ocean ridges
- continental shelves

Could you tell me which one is correct?

mid-ocean ridges