I know that John Locke is natural rights
A typical benefit of a job in Veterinary Medican is:
~The Chance to make a difference in the lives of animals.
Hope this helps.
I believe the answer would be the last option. A resource has value, and people are willing to pay for it most likely because the resource is scarce. When a resource is not enough or the supply is low as compared to its demand, then most likely that price or value of it would increase.