Unanticipated Large-Scale Inventory Accumulation or Drawdowns

Unanticipated large-scale inventory accumulation or drawdowns

A) have been a minor source of fluctuations in employment and output over the past century.
B) have been a principal cause of inflation over the past century.
C) have been a principal cause of interest rate movements over the past century.
D) have been a principal source of fluctuations in employment and output over the past century.