Rock cools quickly from melted rock. Rock is recrystallized by extreme pressure. Rock solidifies slowly deep underground. Rock is formed from deposited sediment.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: What is the major process of surface rock formation on volcanoes?
Possibilities:
- Rock cools quickly from melted rock.
- Rock is recrystallized by extreme pressure.
- Rock solidifies slowly deep underground.
- Rock is formed from deposited sediment.

Rock cools quickly from melted rock.