Which of the following BEST explains why there is currently a movement to sustain natural resources for as long as possible?
A. Humans want to create “man-made” natural resources because mining natural resources is expensive.
B. Humans cannot create natural resources, so it will be difficult to replace them when they run out.
C. Humans are afraid that using natural resources is harming their overall health and wellness.
D. Humans are tired of having modern conveniences and are looking to live a more simplistic lifestyle.