Suppose the Money Demand Function Is M^D = P ×

Suppose the money demand function is M^D = P × [(0.25 × Y) ? (100 × i) ],
Where Y is expressed in billions of dollars and i is expressed in percentage points.The term [(0.25 × Y) ? (100 × i) ]
Is called

A) the nominal money-demand function.
B) the nominal money-supply function.
C) the real money-supply function.
D) the real money-demand function.