Answer: C. real GDP = $6.0 trillion and aggregate planned expenditures = $4.0 trillion
Step-by-step explanation:
Unplanned Inventory arises when Real GDP is larger than Planned Expenditure because it must satisfy the below formula,
Real GDP = Planned + Unplanned expenditure
For Option C,
Real GDP = 6.0 trillion,
Planned expenditure = 4.0 trillion
Unplanned Expenditure = Real GDP - Planned Expenditure
= $6.0 trillion - $4.0 trillion
= $2.0 trillion
Therefore Option C is correct as it led to a $2.0 trillion increase in Expenditure which translates to inventory.