Use the Figure Below to Answer the Following Questions

Multiple Choice

Use the figure below to answer the following questions. Figure 2.1.1
-Refer to the production possibilities frontier in Figure 2.1.1.Which one of the following is true about point C?

A) It is efficient and attainable.
B) It is unattainable.
C) It is attainable and inefficient.
D) It is attainable only if the opportunity cost of producing X increases.
E) It is attainable only if the opportunity cost of producing X decreases.