Which of the Following Schematics Most Accurately Represents Economic Fluctuations

Which of the following schematics most accurately represents economic fluctuations during a business cycle?

A) Shock → Spending response by households and firms → Multiplier effect → Change in real GDP
B) Shock → Multiplier effect → Spending response by households and firms → Change in real GDP
C) Shock → Multiplier effect → Change in real GDP → Spending response by households and firms
D) Shock → Change in real GDP → Spending response by households and firms → Multiplier effect