strong earthquake activity at a hot spot pressure in thick sediments that produces heat unusually excessive erosion that wears away bedrock
I gave my students this multiple choice question: A volcano found in the center of a tectonic plate tends to be a result of which phenomenon?

Only one answer is correct among these 4 choices:
- strong earthquake
- activity at a hot spot
- pressure in thick sediments that produces heat
- unusually excessive erosion that wears away bedrock

Could you tell me which one is correct?

activity at a hot spot