Which statement is true? (2 points) select one: a. geothermal power plants use the renewable resource of heat from within the earth to generate electricity. b. hydroelectric energy uses the energy from the sun, which is a renewable resource. c. oil is a nonrenewable resource that is hardly ever used, so there is not a concern of depleting the earth's supply. d. solar energy is a nonrenewable resource that is used by many countries all over the world.