Geothermal energy is obtained by using the heat stored in the Earth’s interior. What steps are necessary to produce energy from the Earth'e geothermal energy?

A) The Earth's heat converts water to steam which is stored in fuel cells, powering a generator, releasing energy.
B) The Earth's heat converts water to steam, producing mechanical energy which powers a generator, releasing energy.
C) The Earth's heat converts water to steam which is used to turn a turbine which releases energy to the power grid.
D) The Earth's heat converts water to steam which is used to turn a turbine which powers a generator, releasing energy.