Energy Reserves Differ from Energy Resources in That

Energy reserves differ from energy resources in that

A) energy reserves estimate the amount of a material remaining to be discovered,while energy resources are materials that have already been discovered.
B) energy resources estimate the amount of a material remaining to be discovered,while energy resources are materials that have already been discovered.
C) energy reserves are the amount of non-renewable resources remaining,while energy resources are the amount of renewable energy sources available.
D) energy resources are deposits that have been discovered,while energy reserves are the predicted amount of global consumption of those deposits on an annual basis.