Short-Run Fluctuations in Real GDP Around Its Trend Value Are

Multiple Choice

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

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