When the geological rocks are divided and separated at joints and faults that result in the rock division and separation into small pieces is called a fractured rock. Fractures create crevices and fissures in the rock.
Hot water turns into steam as it moves up through fractured rock.
The heat is present in the form of hydrothermal circulation a process carried by convection. The water found in the oceans and sea is cold but interacts with the heat inside the surface and molten rocks and converts to form hydrothermal fluids.
This heated water or the hydrothermal fluids rises in the form of steams from the surfaces or the fractured rocks as they have very high temperatures compared to the outer region.
Therefore, option D is correct.
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