Refer to the Information Provided in Figure 2

Multiple Choice

Refer to the information provided in Figure 2.6 below to answer the questions that follow.
Figure 2.6
-Refer to Figure 2.6.Which of the following will NOT cause the production possibility frontier to shift from ppf¹ to ppf²?

A) the discovery of previously unknown oil fields
B) an improvement in technology
C) an increase in the stock of capital
D) a decrease in the unemployment rate