Use the Following Figure to Answer Questions: Figure 1

Multiple Choice

Use the following figure to answer questions: Figure 1.4 1
-In Figure 1.4,a shift of the production possibilities curve from PP1 to PP2 could be caused by

A) An increase in the unemployment rate.
B) Implementation of training programs that improve the skills of workers.
C) A flu epidemic that makes many workers sick.
D) Tougher pollution controls for the producers of plasma televisions and MP3 players.