Which of the following could lead the production possiblitie

Which of the following could lead the production possiblities curve to shift inward? O the discovery of new sources of raw materials O a better educated labor force O an earthquake that destroys several major factories O an increase in productive resources O None of the above because the production possibilities frontier can never shift inward

Solution

Answer is An earthquake that destroys several major factories.

Explanation:

The Inward shift of PPC suggests that the production resources has been decreased. The destruction of factories because of earthquakes is one of the reasons for inward shift in PPC.