The Inflation Rate Has Been Constant for Several Years at 4

The inflation rate has been constant for several years at 4 percent, and the unemployment rate has been stable at 6 percent over the same time period. Changes in government policy that cause the inflation rate to rise to 6 percent will

A) have no effect on the unemployment rate.
B) cause the unemployment rate to fall in the short run.
C) cause the unemployment rate to rise to 9 percent in the short run.
D) cause the unemployment rate to rise in the short run, but we cannot tell by how much.