Answer:
B. When minerals become scarce, they become more expensive
Explanation:
If a mineral is widely used, It obviously will run out, so D is not the correct answer.
It's not C because you know minerals can be used in many purposes such as food, water, or jewelry.
minerals cannot be replaced by other minerals because they're not the same thing so it's not A
people mainly will protect mineral resources because they are valuable and they don't want it to run out.
