deep-sea currents earthquake formation spreading of the sea floor sedimentary rocks
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: When scientists proposed the Theory of Continental Drift, there were many skeptics. Which discovery confirmed that the continents move on plates?
Possibilities:
- deep-sea currents
- earthquake formation
- spreading of the sea floor
- sedimentary rocks

spreading of the sea floor