Use the Table Below to Answer the Following Questions

Multiple Choice

Use the table below to answer the following questions.
Table 2.1.1
The following table gives points on the production possibilities frontier for goods X and Y.
-Refer to Table 2.1.1.The opportunity cost of increasing the production of X from 8 to 12 units is

A) 4 units of X.
B) 4 units of Y.
C) 8 units of Y.
D) 12 units of Y.
E) 16 units of Y.