What can be saSelect the event that would NOT shift the PPC from PPC2 to PPC1. a. Technology improves b. The capital stock increases c. The workforce becomes more educated d. Unemployment is reducedid about points B and C on the production possibilities curve? Select one: a. B is inefficient, and C is unobtainable. b. B and C are both attainable and efficient c. point B has a production mix with more automobiles than point C d. both are equal in terms of productive efficiency