Figure 2-11 -Refer to Figure 2-11.Which of the Following Events Would Explain

Multiple Choice

Figure 2-11
-Refer to Figure 2-11.Which of the following events would explain the shift of the production possibilities frontier from A to B?

A) The economy's citizens developed an enhanced taste for books.
B) The economy experienced a technological advance in the production of books.
C) More capital became available in the economy.
D) More labor became available in the economy.