Refer to the information provided in Figure 13.6 below to answer the question that follows. Figure 13.6 Refer to Figure 13.6. The maximum profit level for the Memory Company is

The long-run Phillips curve is a vertical line because

A) there is no relationship between the natural unemployment rate and the inflation rate. B) real GDP does not depend on the unemployment rate. C) in the long run, the natural unemployment rate increases when inflation increases. D) the unemployment rate decreases when the inflation rate increases. E) the natural unemployment rate only depends on the inflation rate.

Good internal control over financial investments requires that the treasurer obtain certificates for all securities and keep them in the company safe.

a. true b. false