Which of the following is not an example of a global public good?
Ahigh-yielding varieties (HYVs) of grains
Bthe campaign against river blindness
Cthe drilling of oil in the Arctic
DPolio and small-pox vaccinations.
Correct answer
D. Polio and small-pox vaccinations.
Explanation
The correct answer is Polio and small-pox vaccinations..