at the beginning of a year, decision makers expect the general level of prices to increase at a 3 percent annual rate. the cpi increases from 150 to 154.5 during the year; this is an example of a. an inflation rate that is less than what people anticipated. b. an unanticipated increase in the general level of prices. c. an inflation rate that is equal to 4.5 percent. d. an increase in the general level of prices that was accurately anticipated.