Pls help

Suppose our economy is characterized by the the following information: Consumption expenditure: C= 100 + 0.8 Ya Taxes: T=0.1Y Investment expenditure: 1=1100 -2001 Exports: X= 50 Government expenditure: G=100 Imports: M=20 Money derband: MP=100- 1000i Money supply: M= 50 Where i is the interest rate, Y is the real GDP; Ya is the disposable income What is the equilibrium level of GDP (Y) ? O a 4714.28 O b. 276.456 O. C 4500.25 O d 3870.98 O e None of the above