Use the Following to Answer Questions

Use the following to answer questions .
Exhibit: Aggregate Expenditures and Real GDP 2
-(Exhibit: Aggregate Expenditures and Real GDP 2) Let Y = real GDP, AE = Aggregate Expenditures, C = Consumption, I_P = Planned Investment. Consider a simple economy where AE = C + I_P, I_P is autonomous and the consumption function is given by C = $1,000 billion + 0.75Y. What is the value of consumption when real GDP is $6,000 billion?

A) $1,000 billion
B) $2,500 billion
C) $4,500 billion
D) $5,500 billion