The four main Earth system spheres are:
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Lithosphere: This includes the solid outer layer of the Earth, consisting of the crust and the upper part of the mantle. It contains solid rock both below and at Earth's surface.
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Hydrosphere: This sphere encompasses all the water on Earth, including oceans, rivers, lakes, and water vapor in the atmosphere. It primarily involves liquid and frozen water, not solid rock.
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Atmosphere: This refers to the layer of gases surrounding the planet, which is essential for weather and climate but does not contain solid rock.
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Biosphere: This sphere includes all living organisms and their interactions with the other spheres. It is primarily concerned with life and does not include solid rock.
Based on this information, the correct response to your question is lithosphere.