An economy's natural unemployment rate is 4 percent. The table above gives some points on the economy's short-run Phillips curve. When the unemployment rate is 4 percent ( ).
A.
actual inflation is greater than expected inflation
B.
actual inflation is less than expected inflation
C.
and the inflation rate is 6 percent a year, the short-run and long-run Phillips curves intersect
D.
and the expected inflation rate is 8 percent a year, the short-run Phillips curve shifts downward