Use the Figure Below to Answer the Following Question

Use the figure below to answer the following question.
Figure 14.3.3
-Refer to Figure 14.3.3.The figure shows the economy of Freezone.Potential GDP is $350 billion. To return the economy to full employment, the central bank can _______ the overnight rate and _______ securities.

A) raise; buy
B) raise; sell
C) lower; not change its holdings of
D) lower; buy
E) lower; sell