Use the Figure Below to Answer the Following Questions

Multiple Choice

Use the figure below to answer the following questions. Figure 2.1.3
-Figure 2.1.3 illustrates Mary's production possibilities frontier.If Mary wants to move from point B to point C,Mary must

A) improve technology.
B) increase capital.
C) give up some of good X to obtain more of good Y.
D) give up some of good Y to obtain more of good X.
E) pay more for her factors of production.