Figure 2-4 Figure 2-4 Shows Various Points on Three

Multiple Choice

Figure 2-4 Figure 2-4 shows various points on three different production possibilities frontiers for a nation.
-Refer to Figure 2-4. Consider the following events:
a. a decrease in the unemployment rate
b. an increase in a nation's money supply
c. an influx of immigrant workers

Which of the events listed above could cause a movement from X to Z?

A) a, b, and c
B) a and b only
C) a and c only
D) a only
E) c only