erosion from tidal action the deposition of sediment the flow of continental basalt movement from tectonic plates
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Scientists have measured the rate of growth of the Atlantic Ocean basin to be about 2 to 3 cm per year. This type of activity coincides with the formation of ridges on the ocean floor. What is the most likely cause of this activity?
Possibilities:
- erosion from tidal action
- the deposition of sediment
- the flow of continental basalt
- movement from tectonic plates

movement from tectonic plates