Short- Run Fluctuations in Real GDP Around Its Trend Value

Multiple Choice

Short- run fluctuations in real GDP around its trend value are

A) generally ignored by economists, because these fluctuations are constant and predictable.
B) referred to in economics as "background noise".
C) unimportant to the study of macroeconomics.
D) referred to in economics as "the business cycle".
E) generally ignored by economists, because these fluctuations do not affect behaviour of other variables such as the unemployment rate.