Multiple choice :
when referring to metal-bearing materials , we are referring to that part of the resources that can be economically and legally extracted at a given time
a)reserves or ores
b)deposits or metals
c) profit or non-profit resources
d) mines or miner

a)reserves or ores

Explanation: Ores or reserves are those naturally occurring material that are in the form of rock and have mineral inside them. The mineral present in it could be gold, iron etc. These mineral metals are extracted from ores . The ores are inorganic substance which are mined to get the extraction of the metal. Therefore , the correct option for the following question is reserves or ores.