In an Aggregate Expenditures Diagram the Imposition of a Lump-Sum

Multiple Choice

In an aggregate expenditures diagram the imposition of a lump-sum tax (T) will:

A) not affect the C + I_g + X_n line.
B) shift the C + I_g + X_n line upward by an amount equal to T.
C) shift the C + I_g + X_n line downward by an amount equal to T.
D) shift the C + I_g + X_n line downward by an amount equal to T * MPC.