They will be squeezed out onto deltas. They will recrystallize into new rock. They will become part of Earth's outer core. They will melt in magma chambers.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Oceans have many layers of sediments. These layers become compacted when they are buried under other layers of sediments. Which is most likely to happen to the deepest layers?
Possibilities:
- They will be squeezed out onto deltas.
- They will recrystallize into new rock.
- They will become part of Earth's outer core.
- They will melt in magma chambers.

They will recrystallize into new rock.