What Is True of Depletable Resources Is That

Multiple Choice

What is true of depletable resources is that

A) increasing scarcity leads to their total disappearance.
B) they are depleted by gradually using up the supply of homogeneous resources, every unit of which is equally available.
C) generally the most accessible and cheapest sources are used up so that new supplies become more costly.
D) their prices must rise at the average rate of inflation.