The Primary Difference Between Resources and Reserves Is That

The primary difference between resources and reserves is that:

A) resources still remain in the ground, while reserves have been mined and are in storage.
B) resources exist but recovery is not currently profitable; reserves can be extracted for profit.
C) resources refer to all available useful materials, while reserves refer only to available fossil fuels.
D) resources are materials currently available to the public, while reserves remain in the ground for future use.